Profiling results ----------------- Total cpu time observed: 16716ms (out of 16244ms) Number of samples taken: 69 (once every 242ms) =================================================================== Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee =================================================================== ??? [47] 100.0% [1] 15852(94.8%) 0(0.0%) profile-thunk14 ...t/pkgs/profile-lib/main.rkt:9:0 run [11] 100.0% ------------------------------------------------------------------- ??? [47] 100.0% [2] 10944(65.5%) 0(0.0%) run-improve58 ...ock/herbie/src/mainloop.rkt:242:0 for-loop [12] 92.6% loop [13] 5.5% get-final-combination [23] 1.8% ------------------------------------------------------------------- ??? [47] 100.0% [3] 6644(39.7%) 0(0.0%) simplify ...lock/herbie/src/core/simplify.rkt:39:0 iterate-egraph!5 [25] 71.9% simplify-expr [17] 15.7% for-loop [20] 12.4% ------------------------------------------------------------------- location-do [63] 100.0% [4] 2428(14.5%) 0(0.0%) approximate9 ...ck/herbie/src/core/taylor.rkt:11:0 loop [14] 100.0% ------------------------------------------------------------------- hash-ref! [93] 100.0% [5] 2228(13.3%) 0(0.0%) simplify ...atlock/herbie/src/core/reduce.rkt:18:0 parse-loop50 [55] 63.1% f37 [18] 36.9% ------------------------------------------------------------------- hash-ref! [93] 100.0% [6] 1806(10.8%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:392:23 for-loop [15] 88.9% partition-list [22] 11.1% ------------------------------------------------------------------- hash-ref! [93] 100.0% [7] 1406(8.4%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:295:23 for-loop [16] 100.0% ------------------------------------------------------------------- hash-ref! [93] 100.0% [8] 826(4.9%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:285:26 for-loop [19] 100.0% ------------------------------------------------------------------- hash-ref! [93] 100.0% [9] 604(3.6%) 0(0.0%) ??? /home/ztatlock/herbie/src/programs.rkt:197:5 loop [48] 100.0% ------------------------------------------------------------------- hash-ref! [93] 100.0% [10] 422(2.5%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:483:23 for-loop [21] 100.0% ------------------------------------------------------------------- profile-thunk14 [1] 100.0% [11] 15852(94.8%) 0(0.0%) run ...share/racket/pkgs/profile-lib/main.rkt:31:2 ??? [47] 100.0% ------------------------------------------------------------------- run-improve58 [2] 100.0% [12] 10138(60.6%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:253:8 run-iter! [24] 100.0% ------------------------------------------------------------------- run-improve58 [2] 13.7% ??? [47] 86.3% [13] 4408(26.4%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:122:2 make-exacts* [34] 54.8% loop [26] 40.6% loop [36] 4.6% ------------------------------------------------------------------- approximate9 [4] 100.0% [14] 2428(14.5%) 0(0.0%) loop ...e/ztatlock/herbie/src/core/taylor.rkt:82:4 hash-ref! [93] 100.0% ------------------------------------------------------------------- ??? [6] 100.0% [15] 1606(9.6%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:396:33 for-loop [27] 100.0% ------------------------------------------------------------------- ??? [7] 100.0% [16] 1406(8.4%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:298:27 hash-ref! [93] 100.0% ------------------------------------------------------------------- simplify [3] 100.0% [17] 1042(6.2%) 0(0.0%) simplify-expr ...herbie/src/core/simplify.rkt:68:0 iterate-egraph!5 [25] 100.0% ------------------------------------------------------------------- loop [48] 9.7% map [41] 17.4% parse-loop50 [55] 19.6% simplify [5] 53.4% [18] 1022(6.1%) 222(1.3%) f37 ...t/collects/racket/match/compiler.rkt:499:40 map [41] 76.1% compose [29] 19.6% ------------------------------------------------------------------- ??? [8] 100.0% [19] 826(4.9%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:285:52 ??? [28] 51.3% hash-ref! [93] 48.7% ------------------------------------------------------------------- simplify [3] 100.0% [20] 824(4.9%) 0(0.0%) for-loop ...ock/herbie/src/core/simplify.rkt:61:12 iterate-egraph!5 [25] 100.0% ------------------------------------------------------------------- ??? [10] 100.0% [21] 422(2.5%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:487:35 parse-loop50 [55] 100.0% ------------------------------------------------------------------- ??? [6] 100.0% [22] 200(1.2%) 0(0.0%) partition-list ...herbie/src/core/taylor.rkt:376:0 rle [30] 100.0% ------------------------------------------------------------------- run-improve58 [2] 100.0% [23] 200(1.2%) 0(0.0%) get-final-combination ...ie/src/mainloop.rkt:269:0 extract-alt [31] 100.0% ------------------------------------------------------------------- for-loop [12] 100.0% [24] 10138(60.6%) 0(0.0%) run-iter! ...tatlock/herbie/src/mainloop.rkt:223:0 simplify! [32] 65.5% gen-series! [35] 25.9% finalize-iter! [37] 6.3% choose-best-alt! [38] 2.2% ------------------------------------------------------------------- for-loop [20] 12.4% simplify-expr [17] 15.7% simplify [3] 71.9% [25] 6644(39.7%) 0(0.0%) iterate-egraph!5 ...bie/src/core/simplify.rkt:95:0 one-iter [33] 100.0% ------------------------------------------------------------------- loop [13] 100.0% [26] 1790(10.7%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:93:2 loop [36] 42.7% make-exacts* [34] 34.9% eval-prog [90] 22.5% ------------------------------------------------------------------- for-loop [15] 100.0% [27] 1606(9.6%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:398:39 hash-ref! [93] 100.0% ------------------------------------------------------------------- for-loop [19] 100.0% [28] 424(2.5%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:288:19 hash-ref! [93] 100.0% ------------------------------------------------------------------- f37 [18] 100.0% [29] 200(1.2%) 200(1.2%) compose ...collects/racket/private/list.rkt:385:12 ------------------------------------------------------------------- partition-list [22] 100.0% [30] 200(1.2%) 0(0.0%) rle ...e/ztatlock/herbie/src/core/taylor.rkt:372:0 group-by68 [39] 100.0% ------------------------------------------------------------------- get-final-combination [23] 100.0% [31] 200(1.2%) 0(0.0%) extract-alt ...e/ztatlock/herbie/src/glue.rkt:57:0 loop [77] 100.0% ------------------------------------------------------------------- run-iter! [24] 100.0% [32] 6644(39.7%) 0(0.0%) simplify! ...tatlock/herbie/src/mainloop.rkt:162:0 for-loop [40] 100.0% ------------------------------------------------------------------- iterate-egraph!5 [25] 100.0% [33] 6644(39.7%) 1064(6.4%) one-iter ...ock/herbie/src/core/simplify.rkt:106:0 for-loop [42] 46.7% loop [44] 31.0% apply-match [50] 6.2% ------------------------------------------------------------------- loop [26] 20.5% loop [13] 79.5% [34] 3038(18.2%) 0(0.0%) make-exacts* ...tatlock/herbie/src/points.rkt:80:0 map [41] 54.0% loop [48] 39.4% eval-prog [90] 6.6% ------------------------------------------------------------------- run-iter! [24] 100.0% [35] 2630(15.7%) 0(0.0%) gen-series! ...tlock/herbie/src/mainloop.rkt:134:0 for-loop [43] 100.0% ------------------------------------------------------------------- loop [13] 21.1% loop [26] 78.9% [36] 968(5.8%) 204(1.2%) loop /home/ztatlock/herbie/src/points.rkt:83:4 map [41] 78.9% ------------------------------------------------------------------- run-iter! [24] 100.0% [37] 642(3.8%) 0(0.0%) finalize-iter! ...ck/herbie/src/mainloop.rkt:177:0 ??? [45] 100.0% ------------------------------------------------------------------- run-iter! [24] 100.0% [38] 222(1.3%) 0(0.0%) choose-best-alt! .../herbie/src/mainloop.rkt:120:0 ??? [45] 100.0% ------------------------------------------------------------------- rle [30] 100.0% [39] 200(1.2%) 0(0.0%) group-by68 ...acket/collects/racket/list.rkt:749:0 hash-update [46] 100.0% ------------------------------------------------------------------- simplify! [32] 100.0% [40] 6644(39.7%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:166:6 ??? [47] 100.0% ------------------------------------------------------------------- parse-loop50 [55] 11.1% loop [36] 21.1% f37 [18] 22.7% make-exacts* [34] 45.2% [41] 3628(21.7%) 0(0.0%) map ...acket/collects/racket/private/map.rkt:21:13 loop [48] 71.8% parse-loop50 [55] 22.1% f37 [18] 6.1% ------------------------------------------------------------------- for-loop [42] 43.5% one-iter [33] 56.5% [42] 3104(18.6%) 626(3.7%) for-loop ...ck/herbie/src/core/simplify.rkt:116:12 for-loop [42] 43.5% match-e [53] 39.9% ------------------------------------------------------------------- gen-series! [35] 100.0% [43] 2630(15.7%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:140:7 taylor-alt [49] 100.0% ------------------------------------------------------------------- one-iter [33] 100.0% [44] 2062(12.3%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:53:19 apply-match [50] 100.0% ------------------------------------------------------------------- choose-best-alt! [38] 25.7% finalize-iter! [37] 74.3% [45] 864(5.2%) 0(0.0%) ??? ...contract/private/arrow-val-first.rkt:357:18 for-loop [51] 74.3% atab-pick-alt8 [52] 25.7% ------------------------------------------------------------------- group-by68 [39] 100.0% [46] 200(1.2%) 200(1.2%) hash-update ...cket/private/more-scheme.rkt:356:13 ------------------------------------------------------------------- for-loop [40] 13.8% run [11] 42.2% [47] 16254(97.2%) 1508(9.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk14 [1] 42.2% run-improve58 [2] 27.7% simplify [3] 13.8% loop [13] 11.7% ------------------------------------------------------------------- make-exacts* [34] 0.0% map [41] 2.1% ??? [9] 11.6% parse-loop50 [55] 14.8% loop [48] 71.5% [48] 5204(31.1%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:26:19 loop [48] 71.5% parse-loop50 [55] 15.4% hash-ref! [93] 11.6% f37 [18] 1.3% ??? [92] 0.1% ->flonum [58] 0.0% ------------------------------------------------------------------- for-loop [43] 100.0% [49] 2630(15.7%) 0(0.0%) taylor-alt ...e/ztatlock/herbie/src/glue.rkt:142:0 for-loop [54] 100.0% ------------------------------------------------------------------- one-iter [33] 16.7% loop [44] 83.3% [50] 2476(14.8%) 0(0.0%) apply-match .../herbie/src/core/simplify.rkt:122:2 merge-egraph-nodes! [56] 49.8% mk-enode! [59] 17.0% match-e [53] 16.2% for-loop [61] 8.9% reduce-to-single! [62] 8.1% ------------------------------------------------------------------- ??? [45] 100.0% [51] 642(3.8%) 0(0.0%) for-loop ...ock/herbie/src/core/alt-table.rkt:51:2 atab-add-altn [57] 100.0% ------------------------------------------------------------------- ??? [45] 100.0% [52] 222(1.3%) 0(0.0%) atab-pick-alt8 ...rbie/src/core/alt-table.rkt:54:0 ??? [60] 100.0% ------------------------------------------------------------------- for-loop [78] 4.7% apply-match [50] 13.9% for-loop [42] 81.4% [53] 2878(17.2%) 1226(7.3%) match-e ...tatlock/herbie/src/core/ematch.rkt:46:0 for-loop [64] 52.7% for-loop [78] 2.3% variable? [73] 2.3% ------------------------------------------------------------------- taylor-alt [49] 100.0% [54] 2630(15.7%) 202(1.2%) for-loop /home/ztatlock/herbie/src/glue.rkt:144:2 location-do [63] 92.3% ------------------------------------------------------------------- loop [48] 8.8% simplify [5] 15.0% for-loop [21] 17.4% map [41] 23.4% parse-loop50 [55] 35.4% [55] 2428(14.5%) 1606(9.6%) parse-loop50 ...s/racket/match/compiler.rkt:410:15 parse-loop50 [55] 35.4% for-loop [66] 17.4% loop [48] 10.1% map [41] 2.8% make-multiplication-node [74] 2.7% f37 [18] 1.4% ------------------------------------------------------------------- for-loop [72] 8.8% apply-match [50] 91.2% [56] 1234(7.4%) 0(0.0%) merge-egraph-nodes! ...e/src/core/egraph.rkt:152:0 update-leader! [65] 91.2% for-loop [72] 8.8% ------------------------------------------------------------------- for-loop [51] 100.0% [57] 642(3.8%) 0(0.0%) atab-add-altn ...rbie/src/core/alt-table.rkt:208:0 best-and-tied-at-points [67] 65.4% override-at-pnts [70] 34.6% ------------------------------------------------------------------- loop [48] 100.0% [58] 550(3.3%) 284(1.7%) ->flonum ...ock/herbie/src/syntax/syntax.rkt:224:0 ??? [102] 48.4% ------------------------------------------------------------------- apply-match [50] 100.0% [59] 422(2.5%) 0(0.0%) mk-enode! ...lock/herbie/src/core/egraph.rkt:101:0 new-enode [68] 52.6% hash-has-key? [75] 47.4% ------------------------------------------------------------------- atab-pick-alt8 [52] 100.0% [60] 222(1.3%) 0(0.0%) ??? ...tract/private/arrow-higher-order.rkt:369:33 best-alt [69] 100.0% ------------------------------------------------------------------- apply-match [50] 100.0% [61] 220(1.3%) 0(0.0%) for-loop ...ck/herbie/src/core/simplify.rkt:136:10 loop! [71] 100.0% ------------------------------------------------------------------- apply-match [50] 100.0% [62] 200(1.2%) 200(1.2%) reduce-to-single! ...bie/src/core/egraph.rkt:324:0 ------------------------------------------------------------------- for-loop [54] 38.3% location-do [63] 61.7% [63] 2428(14.5%) 0(0.0%) location-do ...tlock/herbie/src/programs.rkt:129:0 location-do [63] 61.7% approximate9 [4] 38.3% ------------------------------------------------------------------- match-e [53] 100.0% [64] 1652(9.9%) 844(5.0%) for-loop ...tlock/herbie/src/core/ematch.rkt:59:11 for-loop [78] 24.3% list-cartesian-product [81] 12.5% foldl [82] 12.1% ------------------------------------------------------------------- merge-egraph-nodes! [56] 100.0% [65] 1234(7.4%) 600(3.6%) update-leader! ...herbie/src/core/egraph.rkt:217:0 for-loop [76] 51.4% ------------------------------------------------------------------- parse-loop50 [55] 100.0% [66] 422(2.5%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:490:59 hash-ref! [93] 100.0% ------------------------------------------------------------------- atab-add-altn [57] 100.0% [67] 420(2.5%) 0(0.0%) best-and-tied-at-points ...ore/alt-table.rkt:122:0 errors [87] 100.0% ------------------------------------------------------------------- mk-enode! [59] 100.0% [68] 222(1.3%) 0(0.0%) new-enode ...atlock/herbie/src/core/enode.rkt:68:0 set [79] 100.0% ------------------------------------------------------------------- ??? [60] 100.0% [69] 222(1.3%) 0(0.0%) best-alt /home/ztatlock/herbie/src/glue.rkt:79:0 loop [77] 100.0% ------------------------------------------------------------------- atab-add-altn [57] 100.0% [70] 222(1.3%) 0(0.0%) override-at-pnts ...e/src/core/alt-table.rkt:145:0 errors [87] 100.0% ------------------------------------------------------------------- for-loop [61] 100.0% [71] 220(1.3%) 0(0.0%) loop! .../ztatlock/herbie/src/core/enode.rkt:163:2 custom-set-union [80] 100.0% ------------------------------------------------------------------- merge-egraph-nodes! [56] 100.0% [72] 218(1.3%) 0(0.0%) for-loop ...lock/herbie/src/core/egraph.rkt:200:10 merge-egraph-nodes! [56] 100.0% ------------------------------------------------------------------- match-e [53] 100.0% [73] 202(1.2%) 202(1.2%) variable? ...ck/herbie/src/syntax/syntax.rkt:218:0 ------------------------------------------------------------------- parse-loop50 [55] 100.0% [74] 200(1.2%) 200(1.2%) make-multiplication-node .../core/reduce.rkt:221:0 ------------------------------------------------------------------- mk-enode! [59] 100.0% [75] 200(1.2%) 200(1.2%) hash-has-key? ...et/private/more-scheme.rkt:368:13 ------------------------------------------------------------------- update-leader! [65] 100.0% [76] 634(3.8%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:222:6 for-loop [83] 100.0% ------------------------------------------------------------------- extract-alt [31] 47.4% best-alt [69] 52.6% [77] 422(2.5%) 0(0.0%) loop /home/ztatlock/herbie/src/common.rkt:86:2 composed [84] 100.0% ------------------------------------------------------------------- match-e [53] 25.1% for-loop [64] 74.9% [78] 402(2.4%) 200(1.2%) for-loop ...tlock/herbie/src/core/ematch.rkt:65:37 match-e [53] 50.2% ------------------------------------------------------------------- new-enode [68] 100.0% [79] 222(1.3%) 222(1.3%) set ...collects/racket/private/set-types.rkt:982:0 ------------------------------------------------------------------- loop! [71] 100.0% [80] 220(1.3%) 0(0.0%) custom-set-union ...et/private/set-types.rkt:168:0 for-loop [85] 100.0% ------------------------------------------------------------------- list-cartesian-product [81] 50.0% for-loop [64] 50.0% [81] 206(1.2%) 206(1.2%) list-cartesian-product ...src/core/ematch.rkt:20:0 list-cartesian-product [81] 50.0% ------------------------------------------------------------------- for-loop [64] 100.0% [82] 200(1.2%) 0(0.0%) foldl ...et/collects/racket/private/list.rkt:229:4 merge2 [86] 100.0% ------------------------------------------------------------------- for-loop [76] 100.0% [83] 634(3.8%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:223:8 hash-update! [88] 100.0% ------------------------------------------------------------------- loop [77] 100.0% [84] 422(2.5%) 0(0.0%) composed ...ollects/racket/private/list.rkt:321:16 errors [87] 100.0% ------------------------------------------------------------------- custom-set-union [80] 100.0% [85] 220(1.3%) 220(1.3%) for-loop ...cts/racket/private/set-types.rkt:174:3 ------------------------------------------------------------------- foldl [82] 100.0% [86] 200(1.2%) 200(1.2%) merge2 ...ztatlock/herbie/src/core/ematch.rkt:31:0 ------------------------------------------------------------------- override-at-pnts [70] 20.9% best-and-tied-at-points [67] 39.5% composed [84] 39.7% [87] 1064(6.4%) 0(0.0%) errors /home/ztatlock/herbie/src/points.rkt:144:0 for-loop [89] 79.1% eval-prog [90] 20.9% ------------------------------------------------------------------- for-loop [83] 100.0% [88] 634(3.8%) 0(0.0%) hash-update! ...ket/private/more-scheme.rkt:362:13 ??? [91] 100.0% ------------------------------------------------------------------- errors [87] 100.0% [89] 842(5.0%) 0(0.0%) for-loop ...e/ztatlock/herbie/src/points.rkt:147:4 ??? [92] 100.0% ------------------------------------------------------------------- make-exacts* [34] 24.5% errors [87] 26.9% loop [26] 48.7% [90] 826(4.9%) 222(1.3%) eval-prog ...tatlock/herbie/src/programs.rkt:162:0 hash-ref! [93] 73.1% ------------------------------------------------------------------- hash-update! [88] 100.0% [91] 634(3.8%) 0(0.0%) ??? .../ztatlock/herbie/src/core/egraph.rkt:225:24 for-loop [94] 100.0% ------------------------------------------------------------------- for-loop [89] 21.6% loop [48] 78.4% [92] 3892(23.3%) 0(0.0%) ??? /home/ztatlock/herbie/src/programs.rkt:168:4 ??? [95] 80.8% real->bigfloat [98] 13.1% ??? [99] 6.1% ------------------------------------------------------------------- for-loop [19] 3.0% ??? [28] 3.2% for-loop [66] 3.5% loop [48] 10.0% eval-prog [90] 10.0% for-loop [16] 10.9% for-loop [27] 13.1% ??? [96] 23.2% loop [14] 23.2% [93] 3032(18.1%) 0(0.0%) hash-ref! ...racket/private/more-scheme.rkt:373:13 ??? [96] 23.2% simplify [5] 21.6% ??? [6] 14.8% ??? [7] 10.9% ??? [9] 10.0% bigfloat-hash [97] 10.0% ??? [8] 6.1% ??? [10] 3.5% ------------------------------------------------------------------- ??? [91] 100.0% [94] 634(3.8%) 634(3.8%) for-loop ...lock/herbie/src/core/egraph.rkt:226:26 ------------------------------------------------------------------- ??? [92] 100.0% [95] 3146(18.8%) 878(5.3%) ??? ...acket/collects/racket/private/kw.rkt:400:14 ??? [100] 65.7% ??? [103] 6.4% ------------------------------------------------------------------- hash-ref! [93] 100.0% [96] 2428(14.5%) 0(0.0%) ??? ...e/ztatlock/herbie/src/core/taylor.rkt:42:15 hash-ref! [93] 100.0% ------------------------------------------------------------------- hash-ref! [93] 100.0% [97] 604(3.6%) 0(0.0%) bigfloat-hash ...h/private/bigfloat/mpfr.rkt:165:0 bfcanonicalize [101] 100.0% ------------------------------------------------------------------- ??? [92] 100.0% [98] 510(3.1%) 510(3.1%) real->bigfloat .../private/bigfloat/mpfr.rkt:451:0 ------------------------------------------------------------------- ??? [92] 100.0% [99] 236(1.4%) 0(0.0%) ??? ...ects/racket/contract/private/guts.rkt:638:8 ??? [102] 100.0% ------------------------------------------------------------------- ??? [95] 100.0% [100] 2068(12.4%) 200(1.2%) ??? ...-racket/utils/simple-result-arrow.rkt:26:12 bfcbrt [104] 65.1% bfadd [105] 25.2% ------------------------------------------------------------------- bigfloat-hash [97] 100.0% [101] 604(3.6%) 604(3.6%) bfcanonicalize .../private/bigfloat/mpfr.rkt:155:0 ------------------------------------------------------------------- ??? [99] 47.0% ->flonum [58] 53.0% [102] 502(3.0%) 502(3.0%) ??? ...tract/private/arrow-higher-order.rkt:373:33 ------------------------------------------------------------------- ??? [95] 100.0% [103] 200(1.2%) 200(1.2%) ??? /home/ztatlock/herbie/src/config.rkt:29:0 ------------------------------------------------------------------- ??? [100] 100.0% [104] 1346(8.1%) 476(2.8%) bfcbrt ...lib/math/private/bigfloat/mpfr.rkt:616:4 ??? [106] 64.6% ------------------------------------------------------------------- ??? [100] 100.0% [105] 522(3.1%) 522(3.1%) bfadd ...-lib/math/private/bigfloat/mpfr.rkt:819:4 ------------------------------------------------------------------- bfcbrt [104] 100.0% [106] 870(5.2%) 870(5.2%) ??? .../share/racket/collects/ffi/unsafe.rkt:861:4 -------------------------------------------------------------------