/usr/share/scheme48-1.9/env/profile.scm is in scheme48 1.9-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 | ; Part of Scheme 48 1.9. See file COPYING for notices and license.
; Authors: Marcel Turino, Manuel Dietrich, Taylor Campbell
;;;;;; Rudimentary Scheme48 profiler -*- Scheme -*-
;;; Taylor Campbell wrote parts of the original code; he has placed them in the public domain.
;; profiling information for each template
(define-record-type profinfo :profinfo
(really-make-profinfo template callers occurs hist memoryuse min-pc instrumented cycle)
profinfo?
(template profinfo-template) ; scheme code template
(callers profinfo-callers profinfo-set-callers!) ; table of callerinfos
(occurs profinfo-occurs profinfo-set-occurs!)
(hist profinfo-hist profinfo-set-hist!)
(tchild profinfo-tchild profinfo-set-tchild!)
(toporder profinfo-toporder profinfo-set-toporder!)
(dfn profinfo-dfn profinfo-set-dfn!) ; depth-first number
(cycle profinfo-cycle profinfo-set-cycle!)
(memoryuse profinfo-memoryuse profinfo-set-memoryuse!)
(min-pc profinfo-min-pc profinfo-set-min-pc!)
(instrumented profinfo-instrumented? profinfo-set-instrumented?!))
(define (make-profinfo prof-data template)
(let ((pi (really-make-profinfo template
(make-table profinfo-id)
0 0 0 #f #f #f)))
(table-set! (profile-data-templates prof-data) template pi)
pi))
;; profiling data for template when being called by CALLER
(define-record-type callerinfo :callerinfo
(make-callerinfo caller calls)
callerinfo?
(caller callerinfo-caller) ; caller profinfo
(calls callerinfo-calls callerinfo-set-calls!) ; number of calls
(tself callerinfo-tself callerinfo-set-tself!) ; time spent in called self
(tchild callerinfo-tchild callerinfo-set-tchild!)) ; time spent in children of called
;;; Miscellaneous global stuff
(define-record-type profile-data :profile-data
(really-make-profile-data)
(interrupttime profile-data-interrupttime set-profile-data-interrupttime!)
(measure-noninstr? profile-data-measure-noninstr? set-profile-data-measure-noninstr?!)
(starttime profile-data-starttime set-profile-data-starttime!)
(endtime profile-data-endtime set-profile-data-endtime!)
(root profile-data-root set-profile-data-root!)
(cycles profile-data-cycles set-profile-data-cycles!)
(samples profile-data-samples set-profile-data-samples!)
(templates profile-data-templates set-profile-data-templates!)
(memoryuse profile-data-memoryuse set-profile-data-memoryuse!)
(gcruns profile-data-gcruns set-profile-data-gcruns!))
;; hash function for callers table in profiling information
(define (profinfo-id pi)
; (template-id (profinfo-template pi)))
0)
(define (make-empty-profile-data)
(let ((pd (really-make-profile-data)))
(set-profile-data-interrupttime! pd (profiler-default-interrupt-time))
(set-profile-data-measure-noninstr?! pd (profiler-measure-non-instrumented?))
(set-profile-data-memoryuse! pd 0)
(set-profile-data-cycles! pd '())
pd))
(define-record-type cycleinfo :cycleinfo
(make-cycleinfo number members)
cycleinfo?
(number cycleinfo-number) ; consecutive numbering
(members cycleinfo-members cycleinfo-set-members!) ; member profinfos
(tchild cycleinfo-tchild cycleinfo-set-tchild!)
)
;; represents a stack entry (while profiling)
(define-record-type stackentry :stackentry
(really-make-stackentry cont template calls firstseen seen)
stackentry?
(cont stackentry-cont stackentry-set-cont!) ; scheme continuation
(template stackentry-template stackentry-set-template!) ; scheme code template
(calls stackentry-reccalls stackentry-set-reccalls!) ; recursive calls
(firstseen stackentry-firstseen stackentry-set-firstseen!) ; run-time first seen this entry
(seen stackentry-seen stackentry-set-seen!)) ; seen this time? (boolean)
(define (make-stackentry cont template)
(really-make-stackentry cont template 0 (run-time) #f))
;;; Global profiling stuff (independent of prof-data)
(define *interrupt-time* #f) ; (theoretical) ms between interrupts
(define *measure-noninstr?* #f)
(define *saved-interrupt-handler* #f) ; non-profiler interrupt handler
(define *profiler-continuation* #f) ; profiler's top continuation
(define *profiler-lock* (make-lock)) ; exclusive lock for interrupt handler
(define *profiler-lastrun* #f) ; run-time of profiler runs
(define *profiler-thisrun* #f)
(define *start-gc-count* 0)
(define *last-gc-count* 0)
(define *cur-gc-count* 0)
(define *last-avail-memory* 0)
(define *cur-avail-memory* 0)
(define interrupt/alarm (enum interrupt alarm))
(define *active-profile-data* #f)
(define *first-call?* #f)
;;; Sampling interrupt time (with setting)
(define *profiler-default-interrupt-time* 50)
(define (positive-integer? n)
(and (integer? n)
(exact? n)
(positive? n)))
(define (profiler-default-interrupt-time)
*profiler-default-interrupt-time*)
(define (set-profiler-default-interrupt-time! interrupt-time)
(set! *profiler-default-interrupt-time* interrupt-time))
(add-setting 'profiler-interrupt-time positive-integer?
profiler-default-interrupt-time
set-profiler-default-interrupt-time!
"profiler sampling interrupt time in milliseconds")
;;; Measure-non-instrumented? flag
(define *profiler-measure-non-instrumented?* #t)
(define (profiler-measure-non-instrumented?)
*profiler-measure-non-instrumented?*)
(define (set-profiler-measure-non-instrumented?! do?)
(set! *profiler-measure-non-instrumented?* do?))
(add-setting 'profiler-measure-noninstr #t
profiler-measure-non-instrumented?
set-profiler-measure-non-instrumented?!
"profiler will measure calls to non-instrumented code"
"profiler will only measure calls to instrumented code")
;;; Miscellaneous global stuff
(define (run-time)
(primitives:time (enum time-option run-time) #f))
;; debug display
(define (ddisplay x)
; (display x)
#f)
(define (get-profinfo prof-data stack-entry)
(if stack-entry
(get-profinfo-from-template prof-data (stackentry-template stack-entry))
#f))
(define (profiler-continuation? cont)
(eq? cont *profiler-continuation*))
(define (get-profinfo-from-template prof-data template)
(or (table-ref (profile-data-templates prof-data) template)
(make-profinfo prof-data template)))
(define (get-profinfo prof-data stack-entry)
(if stack-entry
(get-profinfo-from-template prof-data (stackentry-template stack-entry))
#f))
(define (get-template-name-and-modules prof-data template)
(if (eq? template (profile-data-root prof-data))
(cons '<profiler> '())
(let ((ddata (template-debug-data template)))
(if (not (and (debug-data? ddata)
(pair? (debug-data-names ddata))))
(cons (string-append "anonymous"
(if (debug-data? ddata)
(number->string (debug-data-uid ddata))
(if (number? ddata)
(number->string ddata)
"?")))
'())
(let loop ((names (debug-data-names ddata))
(lst '()))
(set! lst (cons (or (car names) "anonymous") lst))
(if (pair? (cdr names))
(loop (cdr names) lst)
(reverse lst)))))))
(define (same-name? a b)
(string=? (if (symbol? a)
(symbol->string a)
a)
(if (symbol? b)
(symbol->string b)
b)))
(define (profile-data-find prof-data names)
(let ((found-lst '()))
(table-walk
(lambda (template pi)
(let loop ((names names)
(tempnames (get-template-name-and-modules prof-data template)))
(if (string? names)
;; only string given, search match in path
(if (pair? tempnames)
(if (same-name? names (car tempnames))
(set! found-lst (cons pi found-lst))
(loop names (cdr tempnames))))
;; list of strings given, requires full path matching
(if (not (pair? names))
(set! found-lst (cons pi found-lst))
(if (and (pair? tempnames)
(same-name? (car names) (car tempnames)))
(loop (cdr names) (cdr tempnames)))))))
(profile-data-templates prof-data))
found-lst))
(define (do-for-first-matching fun prof-data names)
(let ((pis (profile-data-find prof-data names)))
(if (pair? pis)
(fun (car pis)))))
;;; MAIN
(define (profile command . interrupt-time)
(profile-and-display (if (eq? (car command) 'run)
(eval `(LAMBDA () ,(cadr command))
(environment-for-commands))
(lambda () (execute-command command)))
interrupt-time
(current-output-port)))
(define (profile-and-display thunk
interrupt-time
port)
(let ((prof-data (make-empty-profile-data)))
(call-with-values
(lambda ()
(if (null? interrupt-time)
(profile-thunk prof-data thunk)
(profile-thunk prof-data thunk (car interrupt-time))))
(lambda results
(profile-display prof-data port)
(set-command-results! results)))))
(define (profile-thunk prof-data thunk . opt-args)
(if (not (eq? (profile-data-samples prof-data)
(primitives:unspecific)))
(error 'profile-thunk
"a profile-data record can be used only once"))
(set! *interrupt-time* #f)
(set! *measure-noninstr?* (primitives:unspecific))
;; optional arguments: interrupt-time ...
(case (length opt-args)
((1) ; interrupt time
(let ((int-time (car opt-args)))
(set! *interrupt-time* int-time)))
((2) ; interrupt time with non-instr?
(let ((int-time (car opt-args))
(non-instr? (cadr opt-args)))
(set! *interrupt-time* int-time)
(set! *measure-noninstr?* non-instr?)))
)
;; profile-data interrupt time, if not set
(if (not *interrupt-time*)
(set! *interrupt-time* (profile-data-interrupttime prof-data)))
;; profile-data measure-noninstr?, if not set
(if (eq? *measure-noninstr?* (primitives:unspecific))
(set! *measure-noninstr?* (profile-data-measure-noninstr? prof-data)))
(if *profiler-continuation*
(error
'profile-thunk
"profiler can not be running twice at the same time" thunk)
(begin
(set! *active-profile-data* prof-data)
(set! *first-call?* #t)
(set! *last-stack* #f)
(set! *profiler-thisrun* #f)
(set! *profiler-lastrun* #f)
(set! *last-avail-memory* (available-memory))
(set! *start-gc-count* (get-current-gc-count))
(set! *last-gc-count* *start-gc-count*)
(release-lock *profiler-lock*)
;; init profile-data
(set-profile-data-templates! prof-data (make-table template-id))
(set-profile-data-samples! prof-data 0)
(set-profile-data-starttime! prof-data (run-time))
(set-profile-data-interrupttime! prof-data *interrupt-time*)
;; this is more flexible than generating a own template
(primitive-cwcc
(lambda (cont)
(set-profile-data-root! prof-data
(continuation-template cont))))
(call-with-values
(lambda ()
(dynamic-wind
(lambda ()
(install-profiler-interrupt-handler)
(start-periodic-interrupts!))
(lambda ()
(primitive-cwcc
(lambda (profiler-cont)
(set! *profiler-continuation* profiler-cont)
(thunk)))) ; run program!
(lambda ()
(set! *profiler-continuation* #f)
(stop-periodic-interrupts!)
(uninstall-profiler-interrupt-handler)
(set-profile-data-endtime! prof-data (run-time))
(set-profile-data-gcruns! prof-data (- (get-current-gc-count) *start-gc-count*))
(post-process-stack! prof-data *last-stack*) ; process the last stack trace
;; do necessary calculations
(remove-uncalled prof-data)
(depth-numbering prof-data)
(propagate-times prof-data)
(toporder-numbering prof-data)
(set! *active-profile-data* #f))))
(lambda results
(apply values results))))))
;;; INTERRUPT HANDLING
(define (start-periodic-interrupts!)
(schedule-interrupt *interrupt-time*))
(define (stop-periodic-interrupts!)
(schedule-interrupt 0))
(define (install-profiler-interrupt-handler)
(set! *saved-interrupt-handler* (get-interrupt-handler interrupt/alarm))
(set-interrupt-handler! interrupt/alarm handle-profiler-interrupt))
(define (uninstall-profiler-interrupt-handler)
(let ((handler *saved-interrupt-handler*))
(set! *saved-interrupt-handler* #f)
(set-interrupt-handler! interrupt/alarm handler)))
(define (handle-profiler-interrupt template enabled)
;; After Scheme48 1.0's architectural changes TEMPLATE argument has
;; always been just #f.
;; first thing is getting the continuation, in tail position to prevent
;; capturing profiler functions
(primitive-cwcc
(lambda (cont)
(if (maybe-obtain-lock *profiler-lock*)
(begin
(*saved-interrupt-handler* template enabled) ; thread system, ...
(if *profiler-continuation* (record-continuation! *active-profile-data* cont))
(release-lock *profiler-lock*)
;; HACK: To override thread system interrupt scheduling, may cause
;; extreme performance loss on thread system?
(start-periodic-interrupts!))))))
;;; DISPLAY DATA
;; display s right-aligned in field with width w
(define (display-w s w port)
(if (< (string-length s) w)
(begin
(display " " port)
(display-w s (- w 1) port))
(display s port)))
;; display number right-aligned in field with width w
(define (display-w-nr n w port)
(if n
(display-w (number->string (round n)) w port)
(display-w "?" w port)))
;; same as above, but do not display 0 values
(define (display-w-nr-nz n w port)
(if (= n 0)
(display-w "" w port)
(display-w-nr n w port)))
(define (display-w-mem n w port)
(if (> n 1000000000)
(display-w (string-append (number->string (round (/ n 1000000))) "M") w port)
(display-w (string-append (number->string (round (/ n 1000))) "k") w port)))
(define (display-sep-nrs nr1 nr2 sep w port)
(display-w
(string-append (number->string nr1) sep (number->string nr2))
w
port))
(define (display-sep-unequal-nrs nr1 nr2 sep w port)
(display-w
(if (= nr1 nr2)
(number->string nr1)
(string-append (number->string nr1) sep (number->string nr2)))
w
port))
(define (display-sep-nz-nrs nr1 nr2 sep w port)
(display-w
(if (> nr2 0)
(string-append (number->string nr1) sep (number->string nr2))
(number->string nr1))
w
port))
;; Are there no functions for this!?
(define (number-as-percent-string nr)
(if nr
(let* ((expanded (truncate (* 10000 nr)))
(afterdot (round (inexact->exact (modulo expanded 100))))
(full (round (inexact->exact (quotient (- expanded afterdot) 100)))))
(string-append (number->string full)
"."
(number->string afterdot)
"%"))
"?"))
(define (save/ a b)
(if (= b 0)
#f
(/ a b)))
(define (parse-port-arg opt-port)
(if (null? opt-port)
(current-output-port)
(car opt-port)))
(define (has-samples prof-data)
(> (profile-data-samples prof-data) 0))
(define (profile-display prof-data . opt-port)
(let ((port (parse-port-arg opt-port)))
(profile-display-overview prof-data port)
(newline port)
(profile-display-flat prof-data port)
(newline port)
(profile-display-tree prof-data port)))
;; general profiling data
(define (profile-display-overview prof-data . opt-port)
(let ((port (parse-port-arg opt-port))
(run-time (profile-data-runtime prof-data))
(samples (profile-data-samples prof-data)))
(display "** Samples: " port)
(display samples port)
(if (has-samples prof-data)
(begin
(display " (approx. one per " port)
(display (round (/ run-time samples)) port)
(display "ms)")))
(newline port)
(display "** Interrupt time: " port)
(display *interrupt-time* port)
(display "ms" port)
(newline port)
(display "** Real run time: " port)
(display run-time port)
(display "ms" port)
(newline port)
(if (has-samples prof-data)
(begin
(display "** Total memory: " port)
(display (round (/ (profile-data-memoryuse prof-data) 1000)) port)
(display "k" port)
(newline port)
(display "** GC runs: " port)
(display (profile-data-gcruns prof-data) port)
(newline port)))))
(define (profile-display-flat prof-data . opt-port)
(let ((port (parse-port-arg opt-port)))
(display "** Flat result (times in ms):" port)
(newline port)
(newline port)
;; gprof:
;; % cumulative self self total
;; time seconds seconds calls ms/call ms/call name
(if (has-samples prof-data)
(begin
(display-w "time" 7 port)
(display-w "cumu" 7 port)
(display-w "self" 7 port)
(display-w "mem" 10 port)))
(display-w "calls" 14 port)
(display-w "ms/call" 9 port)
(display-w "name" 7 port)
(newline port)
;; sort and print
(let ((sorted-templates
(get-sorted-templates prof-data (lambda (pi) (- (profinfo-hist pi))) #t)))
(for-each (lambda (profinfo)
(profile-display-profinfo-flat prof-data profinfo port))
sorted-templates))))
;; display data "gprof call graph"-like
(define (profile-display-tree prof-data . opt-port)
(let ((port (parse-port-arg opt-port))
(cycles (profile-data-cycles prof-data)))
(display "** Tree result (times in ms):" port)
(newline port)
(newline port)
(display-w "i" 3 port)
(if (has-samples prof-data)
(begin
(display-w "time" 8 port)
(display-w "self" 7 port)
(display-w "child" 7 port)
(display-w "mem" 10 port)))
(display-w "calls" 14 port)
(display-w "name" 7 port)
(newline port)
;; sort and print
(let ((sorted-templates
(get-sorted-templates prof-data (lambda (pi) (- (profinfo-occurs pi))) #t)))
(for-each (lambda (profinfo)
(profile-display-profinfo-tree prof-data profinfo port))
sorted-templates))
(if cycles
(for-each (lambda (cyc)
(profile-display-cycle-tree prof-data cyc port))
cycles))))
(define (profile-function-calls prof-data names)
(do-for-first-matching profinfo-total-calls prof-data names))
(define (profile-function-reccalls prof-data names)
(do-for-first-matching profinfo-total-reccalls prof-data names))
(define (profile-function-nonreccalls prof-data names)
(do-for-first-matching profinfo-total-nonreccalls prof-data names))
(define (profile-function-occurs prof-data names)
(do-for-first-matching profinfo-occurs prof-data names))
(define (profile-function-hist prof-data names)
(do-for-first-matching profinfo-hist prof-data names))
(define (profile-function-memoryuse prof-data names)
(do-for-first-matching profinfo-memoryuse prof-data names))
(define (profile-function-timeshare prof-data names)
(do-for-first-matching (lambda (pi) (profinfo-timeshare prof-data pi)) prof-data names))
(define (profile-function-time-cumulative prof-data names)
(do-for-first-matching (lambda (pi) (profinfo-total-ms prof-data pi)) prof-data names))
(define (profile-function-time-self prof-data names)
(do-for-first-matching (lambda (pi) (profinfo-self-ms prof-data pi)) prof-data names))
(define (profile-display-function-flat prof-data names . opt-port)
(let ((port (parse-port-arg opt-port))
(pis (profile-data-find prof-data names)))
(for-each (lambda (pi)
(profile-display-profinfo-flat prof-data pi port))
pis)))
(define (profile-display-profinfo-flat prof-data profinfo port)
(let* ((template (profinfo-template profinfo))
(occurs (profinfo-occurs profinfo))
(calls (profinfo-total-calls profinfo))
(reccalls (profinfo-total-reccalls profinfo))
(nonreccalls (profinfo-total-nonreccalls profinfo))
(hist (profinfo-hist profinfo))
(memuse (profinfo-memoryuse profinfo))
(timeshare (profinfo-timeshare prof-data profinfo))
(ttotal (profinfo-total-ms prof-data profinfo))
(tself (profinfo-self-ms prof-data profinfo))
(ms/call (save/ (occurs->ms prof-data occurs) calls)))
(if (not (eq? template (profile-data-root prof-data)))
(begin
(if (has-samples prof-data)
(begin
(display-w (number-as-percent-string timeshare) 7 port)
(display-w-nr ttotal 7 port)
(display-w-nr tself 7 port)
(display-w-mem memuse 10 port)))
(display-sep-nz-nrs nonreccalls reccalls "+" 14 port)
(display-w-nr ms/call 9 port)
(display " " port)
(display-location prof-data template port) ; name
(newline port)
))))
(define (profile-display-function-cycle prof-data names . opt-port)
(let ((port (parse-port-arg opt-port))
(pis (profile-data-find prof-data names)))
(for-each (lambda (pi)
(let ((ci (profinfo-cycle pi)))
(if ci
(profile-display-cycle-tree prof-data ci port))))
pis)))
(define (profile-display-cycle-tree prof-data cycleinfo port)
(let* ((number (cycleinfo-number cycleinfo))
(members (cycleinfo-members cycleinfo))
(callers (cycleinfo-called-from cycleinfo))
(intcalls (cycleinfo-internal-calls cycleinfo))
(extcalls (cycleinfo-external-calls cycleinfo))
(hist (cycleinfo-hist cycleinfo))
(tchild (cycleinfo-tchild cycleinfo))
(memuse (cycleinfo-memoryuse cycleinfo))
(fromextcalls (sumup-calls-int/ext-cycle cycleinfo #f))
(ttotal (+ hist tchild))
(timeshare (save/ ttotal (profile-data-samples prof-data))))
(display "=============================================" port)
(display "=============================================" port)
(newline port)
;; print cycle callers
(for-each
(lambda (caller-pi)
(let* ((calls (cycleinfo-calls-from cycleinfo caller-pi))
(share (/ calls fromextcalls))
(tchild (* tchild share))
(memuse (* memuse share)))
(display-w "" 3 port)
(if (has-samples prof-data)
(begin
(display-w "" 8 port)
(display-w-nr (occurs->ms prof-data hist) 7 port)
(display-w-nr (occurs->ms prof-data tchild) 7 port)
(display-w-mem memuse 10 port)))
(display-sep-nz-nrs calls fromextcalls "/" 14 port)
(display " " port)
(display-profinfo-name prof-data caller-pi port)
(newline port)))
callers)
;; print primary line
(display-w-nr number 3 port)
(if (has-samples prof-data)
(begin
(display-w (number-as-percent-string timeshare) 8 port)
(display-w-nr (occurs->ms prof-data hist) 7 port)
(display-w-nr (occurs->ms prof-data tchild) 7 port)
(display-w-mem memuse 10 port)))
(display-sep-nz-nrs extcalls intcalls "+" 14 port)
(display " " port)
(display "<cycle " port)
(display number port)
(display " as a whole>" port)
(newline port)
;; print cycle members
(for-each
(lambda (member-pi)
(let* ((intcalls (calls-int/ext-cycle cycleinfo member-pi #t))
(nonreccalls (profinfo-total-nonreccalls member-pi))
(totalmemuse (profinfo-memoryuse member-pi))
(occurs (profinfo-occurs member-pi))
(hist (profinfo-hist member-pi))
(tchild (cycleinfo-tchild-member prof-data cycleinfo member-pi))
(share (/ intcalls nonreccalls))
(memuse (* totalmemuse share)))
(display-w "" 3 port)
(if (has-samples prof-data)
(begin
(display-w "" 8 port)
(display-w-nr (occurs->ms prof-data hist) 7 port)
(display-w-nr (occurs->ms prof-data tchild) 7 port)
(display-w-mem memuse 10 port)))
(display-w-nr intcalls 14 port)
(display " " port)
(display-profinfo-name prof-data member-pi port)
(newline port)))
members)
;; print functions called out of the cycle
(for-each
(lambda (called-pi)
(let* ((nonreccalls (profinfo-total-nonreccalls called-pi))
(totalmemuse (profinfo-memoryuse called-pi))
(calls (cycleinfo-calls-to cycleinfo called-pi))
(share (/ calls nonreccalls))
(memuse (* totalmemuse share)))
(display-w "" 3 port)
(if (has-samples prof-data)
(begin
(display-w "" 8 port)
(display-w-nr 0 7 port)
(display-w-nr 0 7 port)
(display-w-mem memuse 10 port)))
(display-sep-nrs calls nonreccalls "/" 14 port)
(display " " port)
(display-profinfo-name prof-data called-pi port)
(newline port)))
(cycleinfo-called-externals prof-data cycleinfo))))
(define (profile-display-function-tree prof-data names . opt-port)
(let ((port (parse-port-arg opt-port))
(pis (profile-data-find prof-data names)))
(for-each (lambda (pi)
(profile-display-profinfo-tree prof-data pi port))
pis)))
(define (profile-display-profinfo-tree prof-data primary-pi port)
(let* ((template (profinfo-template primary-pi))
(toporder (profinfo-toporder primary-pi))
(dfn (profinfo-dfn primary-pi))
(callers (profinfo-callers primary-pi))
(occurs (profinfo-occurs primary-pi))
(calls (profinfo-total-calls primary-pi))
(reccalls (profinfo-total-reccalls primary-pi))
(nonreccalls (profinfo-total-nonreccalls primary-pi))
(memuse (profinfo-memoryuse primary-pi))
(upcalls (profinfo-total-upcalls primary-pi))
(hist (profinfo-hist primary-pi))
(tchild (profinfo-tchild primary-pi))
(primary-cyc (profinfo-cycle primary-pi))
(timeshare (save/ occurs (profile-data-samples prof-data)))
(ms/call (save/ (occurs->ms prof-data occurs) calls)))
(display "=============================================" port)
(display "=============================================" port)
(newline port)
;; print parents
(if (= (table-size callers) 0)
(if (not (eq? template (profile-data-root prof-data)))
(begin (display-w " " 49 port) (display " <spontaneous>" port) (newline)))
(table-walk
(lambda (caller-pi cinfo)
(if (not (eq? caller-pi primary-pi))
(let* ((template (profinfo-template caller-pi))
(dfn (profinfo-dfn caller-pi))
(occurs (profinfo-occurs caller-pi))
(caller-cyc (profinfo-cycle caller-pi))
(calls (callerinfo-calls cinfo))
(share (/ calls upcalls))
(tself-share (* hist share)) ; TODO: correct when recursive function?
(tchild-share (* tchild share))
(memuse-share (* memuse share)))
(display-w "" 3 port)
(if (has-samples prof-data)
(begin
(display-w "" 8 port)
(if (or (not primary-cyc)
(not (eq? caller-cyc primary-cyc)))
(begin
(display-w-nr (occurs->ms prof-data tself-share) 7 port)
(display-w-nr (occurs->ms prof-data tchild-share) 7 port)
(display-w-mem memuse-share 10 port))
(begin
(display-w "" 7 port)
(display-w "" 7 port)
(display-w "" 10 port)))))
(display-sep-nrs calls nonreccalls "/" 14 port)
(display " " port)
(display-profinfo-name prof-data caller-pi port)
(newline port))))
callers))
;; print primary line
(display-w-nr toporder 3 port)
(if (has-samples prof-data)
(begin
(display-w (number-as-percent-string timeshare) 8 port)
(display-w-nr (occurs->ms prof-data hist) 7 port)
(display-w-nr (occurs->ms prof-data tchild) 7 port)
(display-w-mem memuse 10 port)))
(display-sep-nz-nrs nonreccalls reccalls "+" 14 port)
(display " " port)
(display-profinfo-name prof-data primary-pi port)
(newline port)
;; print children
(for-each
(lambda (called-pi)
(if (not (eq? called-pi primary-pi))
(let* ((template (profinfo-template called-pi))
(dfn (profinfo-dfn called-pi))
(occurs (profinfo-occurs called-pi))
(calls (number-of-calls primary-pi called-pi))
(nonreccalls (profinfo-total-nonreccalls called-pi))
(upcalls (profinfo-upcalls primary-pi called-pi))
(hist (profinfo-hist called-pi))
(tchild (profinfo-tchild called-pi))
(called-cyc (profinfo-cycle called-pi))
(memuse (profinfo-memoryuse called-pi))
(share (/ calls upcalls))
(tself-share (* hist share)) ; TODO: correct when recursive function?
(tchild-share (* tchild share))
(memuse-share (* memuse share)))
(display-w "" 3 port)
(if (has-samples prof-data)
(begin
(display-w "" 8 port)
(if (or (not called-cyc)
(not (eq? called-cyc primary-cyc)))
(begin
(display-w-nr (occurs->ms prof-data tself-share) 7 port)
(display-w-nr (occurs->ms prof-data tchild-share) 7 port)
(display-w-mem memuse-share 10 port))
(begin
(display-w "" 7 port)
(display-w "" 7 port)
(display-w "" 10 port)))))
(display-sep-nrs calls nonreccalls "/" 14 port)
(display " " port)
(display-profinfo-name prof-data called-pi port)
(newline port))))
(profinfo-calls prof-data primary-pi))))
;; displays functionname and file of a code template
(define (display-location prof-data template port)
(let loop ((names (get-template-name-and-modules prof-data template)))
(if (string? (car names)) (display "\"" port))
(display (car names) port)
(if (string? (car names)) (display "\"" port))
(if (pair? (cdr names))
(begin (display " in " port)
(loop (cdr names))))))
(define (display-profinfo-name prof-data pi port)
(let* ((template (profinfo-template pi))
(ton (profinfo-toporder pi))
(cyc (profinfo-cycle pi)))
(display-location prof-data template port)
(if cyc
(begin
(display " <cycle " port)
(display (cycleinfo-number cyc))
(display ">" port)))
(display " [" port)
(display ton port)
(display "]" port)))
;;; useful stuff
(define (memq? x l)
(let loop ((l l))
(cond ((null? l) #f)
((eq? x (car l)) #t)
(else (loop (cdr l))))))
(define (remove-duplicates list)
(do ((list list (cdr list))
(res '() (if (memq? (car list) res)
res
(cons (car list) res))))
((null? list)
res)))
;;; DATA CALCULATION
(define (occurs->ms prof-data occs)
(if (has-samples prof-data)
(round (/ (* occs (profile-data-runtime prof-data))
(profile-data-samples prof-data)))
0))
(define (profile-data-runtime prof-data)
(let ((st (profile-data-starttime prof-data))
(et (profile-data-endtime prof-data)))
(if (or (eq? st (primitives:unspecific))
(eq? et (primitives:unspecific)))
(primitives:unspecific)
(- et st))))
;;; cycle stuff
(define (make-new-cycleinfo prof-data)
(let ((new (make-cycleinfo (length (profile-data-cycles prof-data)) '())))
new))
(define (cycleinfo-add prof-data ci)
(if (not (memq? ci (profile-data-cycles prof-data)))
(set-profile-data-cycles! prof-data (cons ci (profile-data-cycles prof-data)))))
(define (cycleinfo-add-member ci member)
(let ((members (cycleinfo-members ci)))
(if (not (memq? member members))
(cycleinfo-set-members! ci (cons member members)))))
;; is profinfo a member of cycle ci?
(define (cycleinfo-member? ci profinfo)
(memq? profinfo
(cycleinfo-members ci)))
(define (cycleinfo-foreach-member ci f)
(for-each f (cycleinfo-members ci)))
;; number of calls to function called-pi from cycle or from outside of cycle
(define (calls-int/ext-cycle ci called-pi internal)
(let ((cnt-calls 0)
(caller-list (profinfo-callers called-pi)))
(table-walk (lambda (caller-pi cinfo)
(if (and (eq? (cycleinfo-member? ci caller-pi)
internal)
(not (eq? caller-pi called-pi)))
(set! cnt-calls (+ cnt-calls (callerinfo-calls cinfo)))))
caller-list)
cnt-calls))
;; sum up internal calls of the cycle or calls from outside into the cycle
(define (sumup-calls-int/ext-cycle ci internal)
(let ((cnt-calls 0))
(cycleinfo-foreach-member
ci
(lambda (member-pi)
(set! cnt-calls (+ cnt-calls (calls-int/ext-cycle ci member-pi internal)))))
cnt-calls))
;; calls done in the cycle internally
(define (cycleinfo-internal-calls ci)
(sumup-calls-int/ext-cycle ci #t))
;; calls done from outside into the cycle
(define (cycleinfo-external-calls ci)
(sumup-calls-int/ext-cycle ci #f))
;; time spent in the functions of the cycle itself
(define (cycleinfo-hist ci)
(let ((tt 0))
(cycleinfo-foreach-member
ci
(lambda (pi)
(set! tt (+ tt (profinfo-hist pi)))))
tt))
(define (cycleinfo-memoryuse ci)
(let ((tt 0))
(cycleinfo-foreach-member
ci
(lambda (pi)
(set! tt (+ tt (profinfo-memoryuse pi)))))
tt))
;; list of function profinfos the called cycle ci
(define (cycleinfo-called-from ci)
(let ((lst '()))
(cycleinfo-foreach-member
ci
(lambda (member-pi)
(let ((caller-list (profinfo-callers member-pi)))
;; add share of every function called from this cycle-function to total
(table-walk (lambda (caller-pi cinfo)
(if (and (not (cycleinfo-member? ci caller-pi))
(not (memq? caller-pi lst)))
(set! lst (cons caller-pi lst))))
caller-list))))
lst))
;; list of function profinfos called from cycle ci
(define (cycleinfo-called-externals prof-data ci)
(let ((lst '()))
(cycleinfo-foreach-member
ci
(lambda (member-pi)
(let ((called-list (profinfo-calls prof-data member-pi)))
;; add share of every function called from this cycle-function to total
(for-each (lambda (called-pi)
(if (and (not (cycleinfo-member? ci called-pi))
(not (memq? called-pi lst)))
(set! lst (cons called-pi lst))))
called-list))))
lst))
;; calls from cycle ci to some other function
(define (cycleinfo-calls-to ci called-pi)
(let ((cnt-calls 0))
(cycleinfo-foreach-member
ci
(lambda (member-pi)
(set! cnt-calls (+ cnt-calls
(number-of-calls member-pi called-pi)))))
cnt-calls))
;; calls to cycle ci from some other function
(define (cycleinfo-calls-from ci caller-pi)
(let ((cnt-calls 0))
(cycleinfo-foreach-member
ci
(lambda (member-pi)
(set! cnt-calls (+ cnt-calls
(number-of-calls caller-pi member-pi)))))
cnt-calls))
;; time spent in functions outside the cycle called from member-pi
(define (cycleinfo-tchild-member prof-data ci member-pi)
(let ((tt 0)
(called-list (profinfo-calls prof-data member-pi)))
;; add share of every function called from this cycle-function to total
(for-each (lambda (called-pi)
(if (and (not (eq? called-pi
member-pi))
(not (cycleinfo-member? ci called-pi)))
(let* ((thiscalls (number-of-calls member-pi called-pi))
(totalcalls (profinfo-total-nonreccalls called-pi))
(occs (profinfo-occurs called-pi))
(share (/ (* occs thiscalls)
totalcalls)))
(set! tt (+ tt share)))))
called-list)
tt))
(define (get-callerinfo caller called)
(let* ((caller-list (profinfo-callers called))
(cinfo (table-ref caller-list caller)))
cinfo))
(define (number-of-calls caller called)
(let ((cinfo (get-callerinfo caller called)))
(if cinfo
(callerinfo-calls cinfo)
0)))
;; total number of calls from caller to the member or its whole cycle
;; (without recursive and cyclic)
(define (profinfo-upcalls caller-pi called-pi)
(let* ((cyc-called (profinfo-cycle called-pi))
(nonrec-calls (profinfo-total-nonreccalls called-pi)))
(if cyc-called
(cycleinfo-calls-from cyc-called caller-pi)
nonrec-calls)))
;; total number of calls from caller to the member or its whole cycle
;; (without recursive and cyclic)
(define (profinfo-total-upcalls called-pi)
(let* ((cyc-called (profinfo-cycle called-pi))
(nonrec-calls (profinfo-total-nonreccalls called-pi)))
(if cyc-called
(sumup-calls-int/ext-cycle cyc-called #f)
nonrec-calls)))
;; number of calls from inside of it's own cycle
(define (profinfo-total-cycliccalls pi)
(let ((cyc (profinfo-cycle pi)))
(if cyc
(calls-int/ext-cycle cyc pi #t)
0)))
(define (profinfo-timeshare prof-data profinfo)
(let ((hist (profinfo-hist profinfo)))
(save/ hist (profile-data-samples prof-data))))
(define (profinfo-total-ms prof-data profinfo)
(let ((occurs (profinfo-occurs profinfo)))
(occurs->ms prof-data occurs)))
(define (profinfo-self-ms prof-data profinfo)
(let ((hist (profinfo-hist profinfo)))
(occurs->ms prof-data hist)))
;; returns a list of all profinfos the function calls
(define (profinfo-calls prof-data caller-pi)
(let ((lst '()))
(table-walk (lambda (template called-pi)
(if (> (number-of-calls caller-pi called-pi) 0)
(set! lst (cons called-pi lst))))
(profile-data-templates prof-data))
(remove-duplicates lst)))
;; total non-recursive calls of this function
(define (profinfo-total-nonreccalls pi)
(- (profinfo-total-calls pi)
(profinfo-total-reccalls pi)))
;; total recursive calls of this function
(define (profinfo-total-reccalls pi)
(let* ((cs (profinfo-callers pi))
(info (table-ref cs pi)))
(if info
(callerinfo-calls info)
0)))
;; total number of calls (with recursive)
(define (profinfo-total-calls pi)
(let ((cs (profinfo-callers pi))
(total 0))
(table-walk (lambda (key cinfo)
(set! total (+ total (callerinfo-calls cinfo))))
cs)
total))
(define (get-sorted-templates prof-data property filter-noncalled?)
(let ((lst '()))
(table-walk (lambda (template profinfo)
(if (or (not filter-noncalled?)
(> (profinfo-total-calls profinfo) 0))
(set! lst (cons profinfo lst))))
(profile-data-templates prof-data))
(set! lst (sort-list lst
(lambda (a b)
(< (property a)
(property b)))))
lst))
(define (propagate-time-from-children prof-data caller-pi)
(ddisplay "progating time for ")
(ddisplay (profinfo-template caller-pi))
(ddisplay " from children...\n")
(let ((called-list (profinfo-calls prof-data caller-pi)))
(for-each
(lambda (called-pi)
(let* ((cinfo (get-callerinfo caller-pi called-pi))
(called-cyc (profinfo-cycle called-pi))
(caller-cyc (profinfo-cycle caller-pi))
(calls (callerinfo-calls cinfo))
(share 0)
(childshare 0))
(ddisplay (profinfo-template caller-pi))
(ddisplay " --> ")
(ddisplay (profinfo-template called-pi))
(if (and (not (eq? caller-pi called-pi))
(or (not called-cyc) (not (eq? called-cyc caller-cyc))))
(begin
(let ((ctself
(if called-cyc
(cycleinfo-hist called-cyc)
(profinfo-hist called-pi)))
(ctchild
(if called-cyc
(cycleinfo-tchild called-cyc)
(profinfo-tchild called-pi)))
(nonreccalls
(if called-cyc
(cycleinfo-external-calls called-cyc)
(profinfo-total-nonreccalls called-pi))))
(ddisplay " ctself: ")
(ddisplay ctself)
(ddisplay ", ctchild: ")
(ddisplay ctchild)
(ddisplay ", nrc: ")
(ddisplay nonreccalls)
(set! share (/ (* ctself calls) nonreccalls))
(set! childshare (/ (* ctchild calls) nonreccalls))
)))
(ddisplay ", calls ")
(ddisplay (round calls))
(ddisplay ", share ")
(ddisplay (round share))
(ddisplay ", childshare ")
(ddisplay (round childshare))
(ddisplay "\n")
;; add shares to arc information
(callerinfo-set-tself! cinfo share)
(callerinfo-set-tchild! cinfo childshare)
;; add everything to child share for parent
(profinfo-set-tchild! caller-pi
(+ (profinfo-tchild caller-pi)
(+ share childshare)))
(if caller-cyc
(cycleinfo-set-tchild! caller-cyc
(+ (cycleinfo-tchild caller-cyc)
(+ share childshare))))
))
called-list)))
(define (propagate-times prof-data)
;; zero out
(table-walk (lambda (template profinfo)
(profinfo-set-tchild! profinfo 0))
(profile-data-templates prof-data))
(for-each (lambda (cyc)
(cycleinfo-set-tchild! cyc 0))
(profile-data-cycles prof-data))
(for-each (lambda (template)
(propagate-time-from-children prof-data template))
(get-sorted-templates prof-data (lambda (pi) (- (profinfo-dfn pi))) #f)))
;;; number function by their depth in the call stack
(define (profinfo-dfn-set? pi)
(number? (profinfo-dfn pi)))
(define (profinfo-dfn-busy? pi)
(eq? (profinfo-dfn pi) 'busy))
(define (build-cycle prof-data dfn-stack top-pi)
;; is it just a recursive call?
(if (not (eq? (car dfn-stack) top-pi))
(begin
;; move down the stack till we find ourselves again, adding
;; every function to our cycle
(let ((cyc (make-new-cycleinfo prof-data)))
(let loop ((stack dfn-stack))
(let* ((pi (car stack))
(pi-cyc (profinfo-cycle pi)))
(cycleinfo-add-member cyc pi)
;; if this function is in a cycle already, we all belong to this cycle too
(if pi-cyc
(begin
;; copy members to this cycle
(for-each (lambda (memb)
(cycleinfo-add-member pi-cyc memb))
(cycleinfo-members cyc))
(set! cyc pi-cyc)))
(if (and (not (null? (cdr stack)))
(not (eq? pi top-pi)))
(loop (cdr stack)))))
;; add cycle globally
(cycleinfo-add prof-data cyc)
;; update cycle information in profinfos
(for-each (lambda (memb)
(profinfo-set-cycle! memb cyc))
(cycleinfo-members cyc))
))))
(define (toporder-numbering prof-data)
(let ((sorted-templates
(get-sorted-templates prof-data (lambda (pi) (- (profinfo-occurs pi))) #f))
(toporder 0))
(for-each (lambda (profinfo)
(profinfo-set-toporder! profinfo toporder)
(set! toporder (+ toporder 1)))
sorted-templates)))
(define (remove-uncalled prof-data)
(let ((tab (profile-data-templates prof-data)))
(table-walk (lambda (template profinfo)
(if (and (= (profinfo-total-calls profinfo) 0)
(not (eq? template (profile-data-root prof-data))))
(table-set! tab template #f)))
tab)))
;;; numbers all functions by their depth in the call stack
(define (depth-numbering prof-data)
(let ((dfn-counter (table-size (profile-data-templates prof-data))))
(letrec ((depth-number-function
(lambda (dfn-stack cur-pi)
;; already set?
(if (not (profinfo-dfn-set? cur-pi))
(begin
;; is it busy? must be a cycle
(if (profinfo-dfn-busy? cur-pi)
(build-cycle prof-data dfn-stack cur-pi)
;; no cycle
(begin
;; pre-visit
(profinfo-set-dfn! cur-pi 'busy)
;; process children
(for-each (lambda (called-pi)
(depth-number-function (cons cur-pi dfn-stack)
called-pi))
(profinfo-calls prof-data cur-pi))
(set! dfn-counter (- dfn-counter 1))
;; post-visit
(profinfo-set-dfn! cur-pi dfn-counter)
)))))))
;; zero out
(table-walk (lambda (template profinfo)
(profinfo-set-dfn! profinfo 'notset)
(profinfo-set-cycle! profinfo #f))
(profile-data-templates prof-data))
(table-walk (lambda (template profinfo)
(depth-number-function '() profinfo))
(profile-data-templates prof-data)))))
;; find root and number from there
; (if (profile-data-root prof-data)
; (let ((root-pi (get-profinfo-from-template prof-data (profile-data-root prof-data))))
; (if root-pi
; (depth-number-function '() root-pi)))))))
;;; RECORDING DATA (while target is running)
(define *last-stack* #f) ; stack at last interrupt
(define *cur-stack* #f) ; stack at this interrupt (to be built)
(define (last-stackentry)
(if (null? *cur-stack*)
#f
(car *cur-stack*)))
;; adds one call to the profinfo of CALLED
(define (profinfo-count-call called caller)
(if (and called caller)
(let ((cs (profinfo-callers called)))
(cond ((table-ref cs caller)
=> (lambda (ci)
(callerinfo-set-calls! ci (+ 1 (callerinfo-calls ci)))))
(else
(table-set! cs caller (make-callerinfo caller 1)))))))
;; duplicate from sort/vector-util
(define (has-element list index)
(cond
((zero? index)
(if (pair? list)
(values #t (car list))
(values #f #f)))
((null? list)
(values #f #f))
(else
(has-element (cdr list) (- index 1)))))
(define (list-ref-or-default list index default)
(if list
(call-with-values
(lambda () (has-element list index))
(lambda (has? maybe)
(if has?
maybe
default)))
default))
(define (set-unseen-all!)
(and *last-stack*
(for-each (lambda (se)
(stackentry-set-seen! se #f))
*last-stack*)))
(define (seen? stackentry)
(and stackentry
(stackentry-seen stackentry)))
(define (seen! old-se se)
(if old-se
(begin
(stackentry-set-firstseen! se (stackentry-firstseen old-se))
(stackentry-set-seen! old-se #t))))
(define (time-passed se)
(let* ((firstseen (stackentry-firstseen se))
(mid (if *profiler-lastrun*
(- *profiler-thisrun*
*profiler-lastrun*)
0))
(passed (- *profiler-thisrun*
firstseen)))
(- passed (/ mid 2))))
;; process the stack entries that have the seen "bit" not set.
(define (post-process-stack! prof-data call-stack)
(let ((gone-stackentries '()))
(if call-stack
(let loop ((stack call-stack)
(caller-se #f)
(seen-templates '()))
(if (not (null? stack))
(let* ((called-se (car stack))
(called-pi (get-profinfo prof-data called-se))
(template (stackentry-template called-se))
(reccalls (stackentry-reccalls called-se)))
(if (and (= reccalls 0)
(not (memq? template seen-templates)))
(begin
;; record occurrence
(profinfo-set-occurs! called-pi
(+ (profinfo-occurs called-pi) 1))))
;; if top element, count as running
(if (null? (cdr stack))
(profinfo-set-hist! called-pi
(+ (profinfo-hist called-pi) 1)))
;; if gone, record it
(if (not (stackentry-seen called-se))
(set! gone-stackentries
(cons called-se gone-stackentries)))
(loop (cdr stack)
called-se
(cons template seen-templates))))))
gone-stackentries))
(define (compare-continuation-args c1 c2)
(let ((ac (continuation-arg-count c1))
(ac2 (continuation-arg-count c2)))
(if (= ac ac2)
(let loop ((i 1))
(if (< i ac)
(if (eq? (continuation-arg c1 i)
(continuation-arg c2 i))
(loop (+ i 1))
#f)
#t))
#f)))
(define (process-stack-traces! prof-data)
(let ((stat-new-funcs '())
(stat-gone-funcs '())
(stat-new-caller #f)
(stat-top #f))
;; go from bottom to top and count calls
(let loop ((pos 0)
(stack *cur-stack*)
(caller-se #f)
(diff-found #f))
(if (not (null? stack))
(let ((new-se (car stack)))
;; compare with last stack
(let ((old-se (list-ref-or-default *last-stack* pos #f))
(rcdcall #f)
(old-diff-found diff-found))
(if (or (not old-se) ; not on old stack
diff-found)
(begin
(set! rcdcall #t)
(set! diff-found #t))
(if (not (eq? (stackentry-template old-se) ; other template => other func
(stackentry-template new-se)))
(begin
(set! rcdcall #t)
(set! diff-found #t))
;; same template...
(let ((old-cont (stackentry-cont old-se))
(new-cont (stackentry-cont new-se)))
(if (not (eq? old-cont new-cont)) ; other continuation, something changed
(begin
(set! diff-found #t) ; remember change upwards...
(if (and (eq? (continuation-pc old-cont) ; same pc and arg-count, else
(continuation-pc new-cont)) ; may be just other place in func
(eq? (continuation-code old-cont)
(continuation-code new-cont))
(compare-continuation-args old-cont new-cont)) ; detects most tailcalls
(set! rcdcall #t)))))))
(if (and caller-se
(not (eq? diff-found
old-diff-found)))
(set! stat-new-caller caller-se))
(if rcdcall
(begin ; new call to fun
(set! stat-new-funcs (cons new-se stat-new-funcs))
(if (and caller-se
*measure-noninstr?*)
(record-call! prof-data
(stackentry-template caller-se) 0
(stackentry-template new-se) 0
#f))
)
(seen! old-se new-se))
(loop (+ pos 1)
(cdr stack)
new-se
diff-found)))
(set! stat-top caller-se)))
(set! stat-gone-funcs
(post-process-stack! prof-data *last-stack*))
(analyze-memory-usage prof-data stat-top stat-new-funcs stat-new-caller stat-gone-funcs)
))
(define (record-template! cont template)
(if template
(if (eq? (closure-template profile-count)
template)
(begin
; (display "hitting profile-count, throwing stack away\n")
(set! *cur-stack* '()))
(begin
(let ((lse (last-stackentry))
(nse (make-stackentry cont template)))
(if (and lse
(eq? (stackentry-template lse)
template))
(stackentry-set-reccalls! lse
(+ 1 (stackentry-reccalls lse))))
;; consider recursion (disabled)
(set! *cur-stack*
(cons nse *cur-stack*)))))))
;; main record function (called from interrupt handler)
(define (record-continuation! prof-data cont)
;; init
(set! *cur-stack* '())
(set! *profiler-lastrun* *profiler-thisrun*)
(set! *profiler-thisrun* (run-time)) ; we cap this here, profiler could run some time
(set! *cur-avail-memory* (available-memory))
(set! *cur-gc-count* (get-current-gc-count))
(set-profile-data-samples! prof-data
(+ 1 (profile-data-samples prof-data)))
;; record the current template
(record-template! cont (find-template cont))
;; decent until we reach our own continuation
(let loop ((cont (continuation-cont cont)))
(if (and cont
(not (profiler-continuation? cont)))
(let ((parent (continuation-cont cont)))
(record-template! cont (continuation-template cont))
(loop parent))))
;; record our root template
(record-template! #f (profile-data-root prof-data))
;; process the stack built above
(if (not (null? *cur-stack*))
(begin
(process-stack-traces! prof-data)
;; save old stack
(set! *last-stack* *cur-stack*)
(set-unseen-all!)))
;; save memory status
(set! *last-avail-memory* (available-memory))
(set! *last-gc-count* (get-current-gc-count)))
;; searchs the (moving?) template in the continuation
(define (find-template cont)
(let ((len (primitives:continuation-length cont)))
(let loop ((i 0))
(and (< i len)
(let ((elt (primitives:continuation-ref cont i)))
(if (template? elt)
elt
(loop (+ i 1))))))))
;;;;;; HEAP PROFILER
;; see commit messages and documentation
(define (available-memory)
(primitives:memory-status (enum memory-status-option available) #f))
(define (get-current-gc-count)
(primitives:memory-status (enum memory-status-option gc-count) #f))
(define (gc-running-meanwhile?)
(> *cur-gc-count* *last-gc-count*))
(define (analyze-memory-usage prof-data top new caller gone)
(if (gc-running-meanwhile?)
(begin
;; we need to know the free memory after GC to fix this
#f)
(begin
(let* ((usage (- *last-avail-memory*
*cur-avail-memory*))
(cntnew (length new))
(cntgone (length gone))
(dotop (and top
(= cntnew 0)
(= cntgone 0)))
(totcnt (+ (if caller 1 0)
cntnew
cntgone))
(avgusage (if (= totcnt 0) 0 (/ usage totcnt)))
(addmem (lambda (se amount)
(let ((pi (get-profinfo prof-data se)))
(profinfo-set-memoryuse!
pi
(+ (profinfo-memoryuse pi)
amount))))))
(if (> usage 0)
(begin
(set-profile-data-memoryuse!
prof-data
(+ (profile-data-memoryuse prof-data) usage))
;; if the template at the top still the same, add all memory to it
(if dotop
(addmem top usage)
;; else distribute memory usage to all relevant templates
(begin
(if caller (addmem caller avgusage))
(for-each (lambda (se) (addmem se avgusage)) new)
(for-each (lambda (se) (addmem se avgusage)) gone)))))))))
; (warning
; 'profile-analyse-memory-usage
; (string-append "usage < 0, somehow memory got free with no GC run: "
; (number->string *last-avail-memory*)
; " -> "
; (number->string *cur-avail-memory*)))
(define (record-call! prof-data caller-template caller-pc called-template called-pc instrumented?)
(let* ((caller-profinfo (get-profinfo-from-template
prof-data
(if *first-call?*
(begin
(set! *first-call?* #f)
(profile-data-root prof-data))
caller-template)))
(called-profinfo (get-profinfo-from-template prof-data called-template))
(min-pc (profinfo-min-pc called-profinfo))
(only-instrumented? (profinfo-instrumented? called-profinfo)))
;; only count this call, if counted by profile-count or
;; by the sampling interrupt if it was not counted by profile-count yet
(if (or instrumented?
(not only-instrumented?))
(begin
;; store the program counter of the first call to the function
(if (not min-pc)
(begin
(set! min-pc called-pc)
(profinfo-set-min-pc! called-profinfo min-pc)
(if instrumented?
(profinfo-set-instrumented?! called-profinfo #t))))
;; we need to check the program counter, otherwise let-s would be counted
;; as a call
(if (<= called-pc min-pc)
(profinfo-count-call called-profinfo caller-profinfo))))))
;;; called from every profiled function (mcount in gprof),
;;; if profiler-instrumentation optimizer enabled for this package
(define (profile-count)
(if *active-profile-data*
(let ((x (primitive-cwcc profile-count-cont)))
x)))
(define (profile-count-cont cont)
(let* ((cont-called (continuation-cont cont))
(cont-caller (continuation-cont cont-called))
(template-called (continuation-template cont-called))
(template-caller (continuation-template cont-caller))
(pc-called (continuation-pc cont-called))
(pc-caller (continuation-pc cont-caller)))
; (display template-caller)
; (display " (")
; (display pc-caller)
; (display ") calls ")
; (display template-called)
; (display " (")
; (display pc-called)
; (display ")\n")
(record-call! *active-profile-data* template-caller pc-caller template-called pc-called #t)))
(define (get-profinfo-from-template prof-data template)
(or (table-ref (profile-data-templates prof-data) template)
(make-profinfo prof-data template)))
;; adds one call to the profinfo of CALLED
(define (profinfo-count-call called caller)
(if (and called caller)
(let ((cs (profinfo-callers called)))
(cond ((table-ref cs caller)
=> (lambda (ci)
(callerinfo-set-calls! ci (+ 1 (callerinfo-calls ci)))))
(else
(table-set! cs caller (make-callerinfo caller 1)))))))
|