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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 14:07:11 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 14:07:11 +0000 |
commit | 63847496f14c813a5d80efd5b7de0f1294ffe1e3 (patch) | |
tree | 01c7571c7c762ceee70638549a99834fdd7c411b /test/fp-speed-1.c | |
parent | Initial commit. (diff) | |
download | sqlite3-63847496f14c813a5d80efd5b7de0f1294ffe1e3.tar.xz sqlite3-63847496f14c813a5d80efd5b7de0f1294ffe1e3.zip |
Adding upstream version 3.45.1.upstream/3.45.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'test/fp-speed-1.c')
-rw-r--r-- | test/fp-speed-1.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/test/fp-speed-1.c b/test/fp-speed-1.c new file mode 100644 index 0000000..5eeb95d --- /dev/null +++ b/test/fp-speed-1.c @@ -0,0 +1,164 @@ +/* +** Performance testing of floating-point binary-to-decimal conversion for +** SQLite versus the standard library. +** +** To compile: +** +** make sqlite3.c +** gcc -Os -c sqlite3.c +** gcc -I. -Os test/fp-speed-1.c sqlite3.o -ldl -lm -lpthread +** +** To run the test: +** +** time ./a.out 0 10000000 <-- standard library +** time ./a.out 1 10000000 <-- SQLite +** time ./a.out 2 10000000 <-- SQLite with long-double disabled +*/ +static double aVal[] = { + -1.0163830486285643089e+063, + +0.0049243807391586981e-019, + +7.3818732407343994867e-095, + +7.0678595219225717143e+000, + +9.2807266319850025655e+120, + +5.8871050861933394663e+135, + -2.2998023621259662805e-168, + -1.5903581924910847482e+181, + +2.4313441816844978216e-001, + -3.8290987328945399091e-147, + +1.8787914062744001349e-009, + +0.7270653560487146653e-014, + +0.0639577697913183665e+107, + +5.2292338879315861930e-103, + +6.3747682672872231319e-021, + +8.6972339538329106984e-129, + -9.5074486051597691937e-026, + -8.6480257845368753018e-005, + -3.5657595775797470332e+017, + -7.8323106179731761351e+161, + +7.7813875274120800372e+077, + -1.8739718928360196596e-050, + +8.6898145915593357218e-051, + +6.0566766359877837871e+002, + +4.1703379217148160678e+199, + +2.1283871288746651560e+150, + -6.8395236083891810637e+128, + -6.2114299763939529155e-147, + -2.0753525742614637350e-149, + +5.8727459803944290257e-007, + +8.5888991062002101817e+010, + +6.8624461031355917632e+026, + -3.3053986756670905167e-075, + -4.3596843152763444945e-108, + +0.0834139520104099673e+098, + -8.8581986548904222440e-192, + -3.6622095428727698202e+038, + -6.6965852297025063260e+005, + +1.8204169347406488441e-054, + +6.5234508038649000384e-065, + +1.5923006018219011453e+083, + +1.7362555291656389480e+018, + +7.2875431976854785882e+160, + +1.2835880105958926748e-146, + +8.0516253320320819420e-113, + +6.6324633399381145440e-030, + -1.7126500070280062058e-149, + +1.6995738341583712335e+042, + +7.6048766923738663725e-112, + +0.6159117235449455043e-004, + +5.7544894355415943289e-135, + +8.2970228592690581890e-023, + -6.5531925360163067447e+020, + +5.8321334606187030050e+120, + +5.6557166509571891727e+095, + +0.3322789708438408704e-114, + -7.1210648776698686623e-050, + -9.6721262526706343301e+179, + -3.4583916571377395084e-106, + +4.7896094323214750793e-172, + -9.6926028040004137875e-056, + +7.0683848275381385483e-198, + -5.2970114182162961964e-007, + -4.4287021200905393271e-170, + +0.0728891155732808799e-189, + -9.1855462025879447465e+175, + +3.7294126234131007796e+015, + +2.6857421882792719241e+003, + -4.7070607333624685339e+039, + +7.2175820768279334274e+136, + -8.3678412534261163481e-115, + +2.2174844304241822163e+019, + +0.1949824588606861016e+112, + -9.7334052955672071912e+151, + -9.7793887766936999879e-142, + -5.1561164587416931561e+139, + -7.5048993577765174789e-022, + +7.3556076568687784568e+107, + -5.0681628575533599865e-144, + +1.5209705642027747811e+165, + -7.5989782535048296040e-101, + +1.3654137203389775871e-016, + -1.6441720554651372066e+087, + -4.9042433196141125923e+000, + -7.7063611961649130777e+118, + +0.1699427460930766201e+174, + +8.3374317849572216870e-145, + -5.2355330480469580072e+081, + -3.8510045942194147919e+141, + -6.3513622544326339887e-147, + +2.3869303484454428988e+049, + +3.8352715871620360268e-165, + -3.1263120493136887902e+035, + -5.5794797002556490823e+051, + -8.8109874479595604379e+142, + -4.3727360120203216922e+070, + -3.1109951189668539974e+170, + -9.4841878031704268232e+011, + -3.7398451668304407277e+067, + +4.8984042008915959963e-091, +}; +#define NN (sizeof(aVal)/sizeof(aVal[0])) + +#include "sqlite3.h" +#include <stdio.h> +#include <stdlib.h> + +int main(int argc, char **argv){ + int i; + int cnt; + int fg; + char zBuf[1000]; + + if( argc!=3 ){ + fprintf(stderr, "Usage: %s FLAG COUNT\n", argv[0]); + return 1; + } + cnt = atoi(argv[2]); + fg = atoi(argv[1]); + + switch( fg % 3 ){ + case 0: { + printf("Doing %d calls to C-lib sprintf()\n", cnt); + for(i=0; i<cnt; i++){ + sprintf(zBuf, "%.26g", aVal[i%NN]); + } + break; + } + case 1: { + printf("Doing %d calls to sqlite3_snprintf()\n", cnt); + for(i=0; i<cnt; i++){ + sqlite3_snprintf(sizeof(zBuf), zBuf, "%!.26g", aVal[i%NN]); + } + break; + } + case 2: { + printf("Doing %d calls to sqlite3_snprintf() without long double\n", cnt); + sqlite3_test_control(SQLITE_TESTCTRL_USELONGDOUBLE, 0); + for(i=0; i<cnt; i++){ + sqlite3_snprintf(sizeof(zBuf), zBuf, "%!.26g", aVal[i%NN]); + } + break; + } + + } + return 0; +} |