| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <time.h> |
| #include <unistd.h> |
| #include <sys/wait.h> |
| |
| void print_stats(struct timespec tv0) |
| { |
| FILE *f; |
| char buf[256]; |
| struct timespec tv; |
| int maj, min, in_heap=0; |
| unsigned long l; |
| size_t vm_size=0, vm_rss=0, vm_priv_dirty=0; |
| |
| clock_gettime(CLOCK_REALTIME, &tv); |
| tv.tv_sec -= tv0.tv_sec; |
| if ((tv.tv_nsec -= tv0.tv_nsec) < 0) { |
| tv.tv_nsec += 1000000000; |
| tv.tv_sec--; |
| } |
| |
| f = fopen("/proc/self/smaps", "rb"); |
| if (f) while (fgets(buf, sizeof buf, f)) { |
| if (sscanf(buf, "%*lx-%*lx %*s %*lx %x:%x %*lu %*s", &maj, &min)==2) |
| in_heap = (!maj && !min && !strstr(buf, "---p") && (strstr(buf, "[heap]") || !strchr(buf, '['))); |
| if (in_heap) { |
| if (sscanf(buf, "Size: %lu", &l)==1) vm_size += l; |
| else if (sscanf(buf, "Rss: %lu", &l)==1) vm_rss += l; |
| else if (sscanf(buf, "Private_Dirty: %lu", &l)==1) vm_priv_dirty += l; |
| } |
| } |
| if (f) fclose(f); |
| printf(" time: %ld.%.9ld, virt: %zu, res: %zu, dirty: %zu\n\n", |
| (long)tv.tv_sec, (long)tv.tv_nsec, |
| vm_size, vm_rss, vm_priv_dirty); |
| } |
| |
| int run_bench(const char *label, size_t (*bench)(void *), void *params) |
| { |
| struct timespec tv0; |
| pid_t p = fork(); |
| if (p) { |
| int status; |
| wait(&status); |
| return status; |
| } |
| |
| puts(label); |
| clock_gettime(CLOCK_REALTIME, &tv0); |
| bench(params); |
| print_stats(tv0); |
| exit(0); |
| } |
| |
| #define RUN(a, b) \ |
| extern size_t (a)(void *); \ |
| run_bench(#a " (" #b ")", (a), (b)) |
| |
| int main() |
| { |
| RUN(b_malloc_sparse, 0); |
| RUN(b_malloc_bubble, 0); |
| RUN(b_malloc_tiny1, 0); |
| RUN(b_malloc_tiny2, 0); |
| RUN(b_malloc_big1, 0); |
| RUN(b_malloc_big2, 0); |
| RUN(b_malloc_thread_stress, 0); |
| RUN(b_malloc_thread_local, 0); |
| |
| RUN(b_string_strstr, "abcdefghijklmnopqrstuvwxyz"); |
| RUN(b_string_strstr, "azbycxdwevfugthsirjqkplomn"); |
| RUN(b_string_strstr, "aaaaaaaaaaaaaacccccccccccc"); |
| RUN(b_string_strstr, "aaaaaaaaaaaaaaaaaaaaaaaaac"); |
| RUN(b_string_strstr, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaac"); |
| RUN(b_string_memset, 0); |
| RUN(b_string_strchr, 0); |
| RUN(b_string_strlen, 0); |
| |
| RUN(b_pthread_createjoin_serial1, 0); |
| RUN(b_pthread_createjoin_serial2, 0); |
| RUN(b_pthread_create_serial1, 0); |
| RUN(b_pthread_uselesslock, 0); |
| |
| RUN(b_utf8_bigbuf, 0); |
| RUN(b_utf8_onebyone, 0); |
| |
| RUN(b_stdio_putcgetc, 0); |
| RUN(b_stdio_putcgetc_unlocked, 0); |
| |
| RUN(b_regex_compile, "(a|b|c)*d*b"); |
| RUN(b_regex_search, "(a|b|c)*d*b"); |
| RUN(b_regex_search, "a{25}b"); |
| } |
| |