-/* $OpenBSD: stats.c,v 1.10 2010/07/19 19:46:44 espie Exp $ */
+/* $OpenBSD: stats.c,v 1.11 2014/04/22 12:21:17 espie Exp $ */
/*
* Copyright (c) 1999 Marc Espie.
static float
average_runs(unsigned long val)
{
- return (float)val / STAT_INVOCATIONS;
+ return (float)val / STAT_INVOCATIONS;
}
static void
print_stats(void)
{
- struct rusage ru;
-
- if (getrusage(RUSAGE_SELF, &ru) != -1) {
- STAT_USER_SECONDS += ru.ru_utime.tv_sec;
- STAT_USER_MS += ru.ru_utime.tv_usec;
- if (STAT_USER_MS > 1000000) {
- STAT_USER_MS -= 1000000;
- STAT_USER_SECONDS++;
+ struct rusage ru;
+
+ if (getrusage(RUSAGE_SELF, &ru) != -1) {
+ STAT_USER_SECONDS += ru.ru_utime.tv_sec;
+ STAT_USER_MS += ru.ru_utime.tv_usec;
+ if (STAT_USER_MS > 1000000) {
+ STAT_USER_MS -= 1000000;
+ STAT_USER_SECONDS++;
+ }
+ STAT_SYS_SECONDS += ru.ru_stime.tv_sec;
+ STAT_SYS_MS += ru.ru_stime.tv_usec;
+ if (STAT_SYS_MS > 1000000) {
+ STAT_SYS_MS -= 1000000;
+ STAT_SYS_SECONDS++;
+ }
}
- STAT_SYS_SECONDS += ru.ru_stime.tv_sec;
- STAT_SYS_MS += ru.ru_stime.tv_usec;
- if (STAT_SYS_MS > 1000000) {
- STAT_SYS_MS -= 1000000;
- STAT_SYS_SECONDS++;
- }
- }
- fprintf(stderr, "Make runs: %lu\n", STAT_INVOCATIONS);
- fprintf(stderr, "Time user: %lu.%06lu, sys %lu.%06lu\n",
- STAT_USER_SECONDS, STAT_USER_MS,
- STAT_SYS_SECONDS, STAT_SYS_MS);
+ fprintf(stderr, "Make runs: %lu\n", STAT_INVOCATIONS);
+ fprintf(stderr, "Time user: %lu.%06lu, sys %lu.%06lu\n",
+ STAT_USER_SECONDS, STAT_USER_MS,
+ STAT_SYS_SECONDS, STAT_SYS_MS);
#ifdef STATS_VAR_LOOKUP
/* to get the average total of MAXSIZE, we need this value */
- STAT_VAR_POWER +=
- STAT_VAR_HASH_MAXSIZE * STAT_VAR_HASH_CREATION;
- fprintf(stderr, "Var finds: %f, lookups: %f, average: %f, max: %lu\n",
- average_runs(STAT_VAR_FIND),
- average_runs(STAT_VAR_SEARCHES),
- (float)STAT_VAR_COUNT/STAT_VAR_SEARCHES,
- STAT_VAR_MAXCOUNT);
- fprintf(stderr, "Average hash: %f, creation: %f, from env %f\n",
- average_runs(STAT_VAR_HASH_CREATION),
- average_runs(STAT_VAR_CREATION),
- average_runs(STAT_VAR_FROM_ENV));
- fprintf(stderr, "Local hash max: %lu, global hash max: %lu, average local: %f\n",
- STAT_VAR_HASH_MAXSIZE,
- STAT_VAR_GHASH_MAXSIZE,
- (float)STAT_VAR_POWER/STAT_VAR_HASH_CREATION);
+ STAT_VAR_POWER +=
+ STAT_VAR_HASH_MAXSIZE * STAT_VAR_HASH_CREATION;
+ fprintf(stderr, "Var finds: %f, lookups: %f, average: %f, max: %lu\n",
+ average_runs(STAT_VAR_FIND),
+ average_runs(STAT_VAR_SEARCHES),
+ (float)STAT_VAR_COUNT/STAT_VAR_SEARCHES,
+ STAT_VAR_MAXCOUNT);
+ fprintf(stderr, "Average hash: %f, creation: %f, from env %f\n",
+ average_runs(STAT_VAR_HASH_CREATION),
+ average_runs(STAT_VAR_CREATION),
+ average_runs(STAT_VAR_FROM_ENV));
+ fprintf(stderr, "Local hash max: %lu, global hash max: %lu, average local: %f\n",
+ STAT_VAR_HASH_MAXSIZE,
+ STAT_VAR_GHASH_MAXSIZE,
+ (float)STAT_VAR_POWER/STAT_VAR_HASH_CREATION);
#endif
#ifdef STATS_GN_CREATION
- fprintf(stderr, "Average GN: %f\n", average_runs(STAT_GN_COUNT));
+ fprintf(stderr, "Average GN: %f\n", average_runs(STAT_GN_COUNT));
#endif
#ifdef STATS_SUFF
- fprintf(stderr, "Average Suffix lookup: %f, transforms: %f\n",
- average_runs(STAT_SUFF_LOOKUP_NAME),
- average_runs(STAT_TRANSFORM_LOOKUP_NAME));
+ fprintf(stderr, "Average Suffix lookup: %f, transforms: %f\n",
+ average_runs(STAT_SUFF_LOOKUP_NAME),
+ average_runs(STAT_TRANSFORM_LOOKUP_NAME));
#endif
#ifdef STATS_BUF
- fprintf(stderr, "Buf tot: %f, def: %f, exp %f, weird %f, bad %f\n",
- average_runs(STAT_TOTAL_BUFS),
- average_runs(STAT_DEFAULT_BUFS),
- average_runs(STAT_BUFS_EXPANSION),
- average_runs(STAT_WEIRD_BUFS),
- average_runs(STAT_WEIRD_INEFFICIENT));
+ fprintf(stderr, "Buf tot: %f, def: %f, exp %f, weird %f, bad %f\n",
+ average_runs(STAT_TOTAL_BUFS),
+ average_runs(STAT_DEFAULT_BUFS),
+ average_runs(STAT_BUFS_EXPANSION),
+ average_runs(STAT_WEIRD_BUFS),
+ average_runs(STAT_WEIRD_INEFFICIENT));
#endif
#ifdef STATS_HASH
- fprintf(stderr, "Hashes new: %f, exp: %f, lookup %f, l: %f, +: %f, ent : %f\n",
- average_runs(STAT_HASH_CREATION),
- average_runs(STAT_HASH_EXPAND),
- average_runs(STAT_HASH_LOOKUP),
- (float)STAT_HASH_LENGTH/STAT_HASH_LOOKUP,
- (float)STAT_HASH_POSITIVE/STAT_HASH_LOOKUP,
- (float)STAT_HASH_ENTRIES/STAT_HASH_SIZE);
+ fprintf(stderr, "Hashes new: %f, exp: %f, lookup %f, l: %f, +: %f, ent : %f\n",
+ average_runs(STAT_HASH_CREATION),
+ average_runs(STAT_HASH_EXPAND),
+ average_runs(STAT_HASH_LOOKUP),
+ (float)STAT_HASH_LENGTH/STAT_HASH_LOOKUP,
+ (float)STAT_HASH_POSITIVE/STAT_HASH_LOOKUP,
+ (float)STAT_HASH_ENTRIES/STAT_HASH_SIZE);
#endif
#ifdef STATS_GROW
- fprintf(stderr, "Grow: %f\n", average_runs(STAT_GROWARRAY));
+ fprintf(stderr, "Grow: %f\n", average_runs(STAT_GROWARRAY));
#endif
- if (mmapped)
- munmap(statarray, STAT_NUMBER * sizeof(unsigned long));
+ if (mmapped)
+ munmap(statarray, STAT_NUMBER * sizeof(unsigned long));
}
void
Init_Stats(void)
{
- char *name;
- int fd;
+ char *name;
+ int fd;
/* try to get ahold of a stats collecting file */
- name = getenv("MAKESTATS");
- if (name) {
- while ((fd = open(name, O_RDWR)) == -1) {
- /* if collecting file does not already exist, fill it with
- * zeros (so all stats starting values should be 0) */
- unsigned long n;
- int i;
- FILE *f;
-
- f = fopen(name, "w");
-
- n = 0;
- for (i = 0; i < STAT_NUMBER; i++)
- fwrite(&n, sizeof(unsigned long), 1, f);
- fclose(f);
- }
-
- /* either we've got the file -> share it across makes */
- if (fd) {
- statarray = mmap(0, STAT_NUMBER * sizeof(unsigned long),
- PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
- if (statarray == MAP_FAILED)
- exit(1);
- mmapped = true;
- }
- } else
- /* or we don't -> simple stats gathering */
- statarray = ecalloc(STAT_NUMBER, sizeof(unsigned long));
- STAT_INVOCATIONS++;
- atexit(print_stats);
+ name = getenv("MAKESTATS");
+ if (name) {
+ while ((fd = open(name, O_RDWR)) == -1) {
+ /* if collecting file does not already exist, fill it with
+ * zeros (so all stats starting values should be 0) */
+ unsigned long n;
+ int i;
+ FILE *f;
+
+ f = fopen(name, "w");
+
+ n = 0;
+ for (i = 0; i < STAT_NUMBER; i++)
+ fwrite(&n, sizeof(unsigned long), 1, f);
+ fclose(f);
+ }
+
+ /* either we've got the file -> share it across makes */
+ if (fd) {
+ statarray = mmap(0, STAT_NUMBER * sizeof(unsigned long),
+ PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ if (statarray == MAP_FAILED)
+ exit(1);
+ mmapped = true;
+ }
+ } else
+ /* or we don't -> simple stats gathering */
+ statarray = ecalloc(STAT_NUMBER, sizeof(unsigned long));
+ STAT_INVOCATIONS++;
+ atexit(print_stats);
}
#endif
-
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