diff options
| -rw-r--r-- | test-wildmatch.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/test-wildmatch.c b/test-wildmatch.c index a5f4833770..ac86800d50 100644 --- a/test-wildmatch.c +++ b/test-wildmatch.c @@ -1,9 +1,82 @@ #include "cache.h" #include "wildmatch.h" +static int perf(int ac, char **av) +{ + struct timeval tv1, tv2; + struct stat st; + int fd, i, n, flags1 = 0, flags2 = 0; + char *buffer, *p; + uint32_t usec1, usec2; + const char *lang; + const char *file = av[0]; + const char *pattern = av[1]; + + lang = getenv("LANG"); + if (lang && strcmp(lang, "C")) + die("Please test it on C locale."); + + if ((fd = open(file, O_RDONLY)) == -1 || fstat(fd, &st)) + die_errno("file open"); + + buffer = xmalloc(st.st_size + 2); + if (read(fd, buffer, st.st_size) != st.st_size) + die_errno("read"); + + buffer[st.st_size] = '\0'; + buffer[st.st_size + 1] = '\0'; + for (i = 0; i < st.st_size; i++) + if (buffer[i] == '\n') + buffer[i] = '\0'; + + n = atoi(av[2]); + if (av[3] && !strcmp(av[3], "pathname")) { + flags1 = WM_PATHNAME; + flags2 = FNM_PATHNAME; + } + + gettimeofday(&tv1, NULL); + for (i = 0; i < n; i++) { + for (p = buffer; *p; p += strlen(p) + 1) + wildmatch(pattern, p, flags1, NULL); + } + gettimeofday(&tv2, NULL); + + usec1 = (uint32_t)tv2.tv_sec * 1000000 + tv2.tv_usec; + usec1 -= (uint32_t)tv1.tv_sec * 1000000 + tv1.tv_usec; + printf("wildmatch %ds %dus\n", + (int)(usec1 / 1000000), + (int)(usec1 % 1000000)); + + gettimeofday(&tv1, NULL); + for (i = 0; i < n; i++) { + for (p = buffer; *p; p += strlen(p) + 1) + fnmatch(pattern, p, flags2); + } + gettimeofday(&tv2, NULL); + + usec2 = (uint32_t)tv2.tv_sec * 1000000 + tv2.tv_usec; + usec2 -= (uint32_t)tv1.tv_sec * 1000000 + tv1.tv_usec; + if (usec2 > usec1) + printf("fnmatch %ds %dus or %.2f%% slower\n", + (int)((usec2 - usec1) / 1000000), + (int)((usec2 - usec1) % 1000000), + (float)(usec2 - usec1) / usec1 * 100); + else + printf("fnmatch %ds %dus or %.2f%% faster\n", + (int)((usec1 - usec2) / 1000000), + (int)((usec1 - usec2) % 1000000), + (float)(usec1 - usec2) / usec1 * 100); + return 0; +} + int main(int argc, char **argv) { int i; + + if (!strcmp(argv[1], "perf")) + return perf(argc - 2, argv + 2); + for (i = 2; i < argc; i++) { if (argv[i][0] == '/') die("Forward slash is not allowed at the beginning of the\n" |