mirror of
https://github.com/freebsd/freebsd-src
synced 2024-10-05 08:00:30 +00:00
Clean up statistics gathering and printing.
This commit is contained in:
Jason Evans
parent
86b391b2e1
commit
842e5e3d91
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=154882
|
|
@ -177,7 +177,6 @@ __FBSDID("$FreeBSD$");
|
|||
* working.
|
||||
*/
|
||||
#define MALLOC_STATS
|
||||
#define MALLOC_STATS_ARENAS
|
||||
|
||||
/*
|
||||
* Include redzones before/after every region, and check for buffer overflows.
|
||||
|
|
@ -298,10 +297,10 @@ struct malloc_bin_stats_s {
|
|||
uint64_t nrequests;
|
||||
|
||||
/*
|
||||
* Number of best-fit allocations that were successfully serviced by
|
||||
* Number of exact-fit allocations that were successfully serviced by
|
||||
* this bin.
|
||||
*/
|
||||
uint64_t nfit;
|
||||
uint64_t nserviced;
|
||||
|
||||
/* High-water marks for this bin. */
|
||||
unsigned long highcached;
|
||||
|
|
@ -311,7 +310,7 @@ struct malloc_bin_stats_s {
|
|||
* during normal operation, so is maintained here in order to allow
|
||||
* calculating the high water mark.
|
||||
*/
|
||||
unsigned nregions;
|
||||
unsigned curcached;
|
||||
};
|
||||
|
||||
typedef struct arena_stats_s arena_stats_t;
|
||||
|
|
@ -349,11 +348,8 @@ struct arena_stats_s {
|
|||
|
||||
/* Frag statistics. */
|
||||
struct {
|
||||
/*
|
||||
* Number of times a region is cached in the "frag" field of
|
||||
* the arena.
|
||||
*/
|
||||
uint64_t ncached;
|
||||
/* Number of times the "frag" field of the arena is refilled. */
|
||||
uint64_t nrefills;
|
||||
|
||||
/*
|
||||
* Number of times a region is requested from the "frag" field
|
||||
|
|
@ -377,16 +373,10 @@ struct arena_stats_s {
|
|||
uint64_t nrequests;
|
||||
|
||||
/*
|
||||
* Number of best-fit allocations that were successfully
|
||||
* Number of allocation requests that were successfully
|
||||
* serviced by large_regions.
|
||||
*/
|
||||
uint64_t nfit;
|
||||
|
||||
/*
|
||||
* Number of allocation requests that were successfully serviced
|
||||
* large_regions, but that a bin could have serviced.
|
||||
*/
|
||||
uint64_t noverfit;
|
||||
uint64_t nserviced;
|
||||
|
||||
/*
|
||||
* High-water mark for large_regions (number of nodes in tree).
|
||||
|
|
@ -1176,7 +1166,7 @@ stats_merge(arena_t *arena, arena_stats_t *stats_arenas)
|
|||
stats_arenas->split.nserviced += arena->stats.split.nserviced;
|
||||
|
||||
/* Frag. */
|
||||
stats_arenas->frag.ncached += arena->stats.frag.ncached;
|
||||
stats_arenas->frag.nrefills += arena->stats.frag.nrefills;
|
||||
stats_arenas->frag.nrequests += arena->stats.frag.nrequests;
|
||||
stats_arenas->frag.nserviced += arena->stats.frag.nserviced;
|
||||
|
||||
|
|
@ -1184,18 +1174,20 @@ stats_merge(arena_t *arena, arena_stats_t *stats_arenas)
|
|||
for (i = 0; i < NBINS; i++) {
|
||||
stats_arenas->bins[i].nrequests +=
|
||||
arena->stats.bins[i].nrequests;
|
||||
stats_arenas->bins[i].nfit += arena->stats.bins[i].nfit;
|
||||
stats_arenas->bins[i].nserviced +=
|
||||
arena->stats.bins[i].nserviced;
|
||||
if (arena->stats.bins[i].highcached
|
||||
> stats_arenas->bins[i].highcached) {
|
||||
stats_arenas->bins[i].highcached
|
||||
= arena->stats.bins[i].highcached;
|
||||
}
|
||||
stats_arenas->bins[i].curcached
|
||||
+= arena->stats.bins[i].curcached;
|
||||
}
|
||||
|
||||
/* large and large_regions. */
|
||||
stats_arenas->large.nrequests += arena->stats.large.nrequests;
|
||||
stats_arenas->large.nfit += arena->stats.large.nfit;
|
||||
stats_arenas->large.noverfit += arena->stats.large.noverfit;
|
||||
stats_arenas->large.nserviced += arena->stats.large.nserviced;
|
||||
if (arena->stats.large.highcached > stats_arenas->large.highcached)
|
||||
stats_arenas->large.highcached = arena->stats.large.highcached;
|
||||
stats_arenas->large.curcached += arena->stats.large.curcached;
|
||||
|
|
@ -1227,28 +1219,29 @@ stats_print(arena_stats_t *stats_arenas)
|
|||
stats_arenas->split.nserviced);
|
||||
|
||||
malloc_printf("cached frag usage:\n");
|
||||
malloc_printf(" %13s%13s%13s\n", "ncached", "nrequests", "nserviced");
|
||||
malloc_printf(" %13llu%13llu%13llu\n", stats_arenas->frag.ncached,
|
||||
malloc_printf(" %13s%13s%13s\n", "nrefills", "nrequests", "nserviced");
|
||||
malloc_printf(" %13llu%13llu%13llu\n", stats_arenas->frag.nrefills,
|
||||
stats_arenas->frag.nrequests, stats_arenas->frag.nserviced);
|
||||
|
||||
malloc_printf("bins:\n");
|
||||
malloc_printf(" %4s%7s%13s%13s%11s\n", "bin",
|
||||
"size", "nrequests", "nfit", "highcached");
|
||||
malloc_printf(" %4s%7s%13s%13s%11s%11s\n", "bin",
|
||||
"size", "nrequests", "nserviced", "highcached", "curcached");
|
||||
for (i = 0; i < NBINS; i++) {
|
||||
malloc_printf(
|
||||
" %4u%7u%13llu%13llu%11lu\n",
|
||||
" %4u%7u%13llu%13llu%11lu%11lu\n",
|
||||
i, ((i + bin_shift) << opt_quantum_2pow),
|
||||
stats_arenas->bins[i].nrequests, stats_arenas->bins[i].nfit,
|
||||
stats_arenas->bins[i].highcached);
|
||||
stats_arenas->bins[i].nrequests,
|
||||
stats_arenas->bins[i].nserviced,
|
||||
stats_arenas->bins[i].highcached,
|
||||
stats_arenas->bins[i].curcached);
|
||||
}
|
||||
|
||||
malloc_printf("large:\n");
|
||||
malloc_printf(" %13s%13s%13s%13s%13s\n", "nrequests", "nfit",
|
||||
"noverfit", "highcached", "curcached");
|
||||
malloc_printf(" %13llu%13llu%13llu%13lu%13lu\n",
|
||||
stats_arenas->large.nrequests, stats_arenas->large.nfit,
|
||||
stats_arenas->large.noverfit, stats_arenas->large.highcached,
|
||||
stats_arenas->large.curcached);
|
||||
malloc_printf(" %13s%13s%13s%13s\n", "nrequests", "nserviced",
|
||||
"highcached", "curcached");
|
||||
malloc_printf(" %13llu%13llu%13lu%13lu\n",
|
||||
stats_arenas->large.nrequests, stats_arenas->large.nserviced,
|
||||
stats_arenas->large.highcached, stats_arenas->large.curcached);
|
||||
|
||||
malloc_printf("huge\n");
|
||||
malloc_printf(" %13s\n", "nrequests");
|
||||
|
|
@ -1715,7 +1708,7 @@ arena_bin_extract(arena_t *arena, unsigned bin, region_t *reg)
|
|||
|
||||
qr_remove(reg, next.u.s.link);
|
||||
#ifdef MALLOC_STATS
|
||||
arena->stats.bins[bin].nregions--;
|
||||
arena->stats.bins[bin].curcached--;
|
||||
#endif
|
||||
if (qr_next(&tbin->regions, next.u.s.link) == &tbin->regions)
|
||||
arena_mask_unset(arena, bin);
|
||||
|
|
@ -2066,12 +2059,12 @@ arena_bin_append(arena_t *arena, unsigned bin, region_t *reg)
|
|||
qr_new(reg, next.u.s.link);
|
||||
qr_before_insert(&tbin->regions, reg, next.u.s.link);
|
||||
#ifdef MALLOC_STATS
|
||||
arena->stats.bins[bin].nregions++;
|
||||
arena->stats.bins[bin].curcached++;
|
||||
|
||||
if (arena->stats.bins[bin].nregions
|
||||
if (arena->stats.bins[bin].curcached
|
||||
> arena->stats.bins[bin].highcached) {
|
||||
arena->stats.bins[bin].highcached
|
||||
= arena->stats.bins[bin].nregions;
|
||||
= arena->stats.bins[bin].curcached;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
|
@ -2096,12 +2089,12 @@ arena_bin_push(arena_t *arena, unsigned bin, region_t *reg)
|
|||
qr_new(reg, next.u.s.link);
|
||||
qr_after_insert(&tbin->regions, reg, next.u.s.link);
|
||||
#ifdef MALLOC_STATS
|
||||
arena->stats.bins[bin].nregions++;
|
||||
arena->stats.bins[bin].curcached++;
|
||||
|
||||
if (arena->stats.bins[bin].nregions
|
||||
if (arena->stats.bins[bin].curcached
|
||||
> arena->stats.bins[bin].highcached) {
|
||||
arena->stats.bins[bin].highcached
|
||||
= arena->stats.bins[bin].nregions;
|
||||
= arena->stats.bins[bin].curcached;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
|
@ -2123,7 +2116,7 @@ arena_bin_pop(arena_t *arena, unsigned bin)
|
|||
== ((bin + bin_shift) << opt_quantum_2pow));
|
||||
qr_remove(ret, next.u.s.link);
|
||||
#ifdef MALLOC_STATS
|
||||
arena->stats.bins[bin].nregions--;
|
||||
arena->stats.bins[bin].curcached--;
|
||||
#endif
|
||||
if (qr_next(&tbin->regions, next.u.s.link) == &tbin->regions)
|
||||
arena_mask_unset(arena, bin);
|
||||
|
|
@ -2479,7 +2472,7 @@ arena_frag_reg_alloc(arena_t *arena, size_t size, bool fit)
|
|||
|
||||
frag = node->reg;
|
||||
#ifdef MALLOC_STATS
|
||||
arena->stats.frag.ncached++;
|
||||
arena->stats.frag.nrefills++;
|
||||
#endif
|
||||
assert(region_next_free_get(&frag->sep));
|
||||
region_next_free_unset(&frag->sep);
|
||||
|
|
@ -2499,7 +2492,7 @@ arena_frag_reg_alloc(arena_t *arena, size_t size, bool fit)
|
|||
/* Use the smallest available region. */
|
||||
arena->frag = arena_bin_pop(arena, bin);
|
||||
#ifdef MALLOC_STATS
|
||||
arena->stats.frag.ncached++;
|
||||
arena->stats.frag.nrefills++;
|
||||
#endif
|
||||
total_size =
|
||||
region_next_size_get(&arena->frag->sep);
|
||||
|
|
@ -2657,7 +2650,6 @@ arena_split_reg_alloc(arena_t *arena, size_t size, bool fit)
|
|||
#ifdef MALLOC_STATS
|
||||
arena->stats.split.nrequests++;
|
||||
#endif
|
||||
|
||||
if (region_next_size_get(&arena->split->sep) >= size) {
|
||||
if (fit) {
|
||||
size_t total_size;
|
||||
|
|
@ -2778,7 +2770,6 @@ arena_split_reg_alloc(arena_t *arena, size_t size, bool fit)
|
|||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifdef MALLOC_STATS
|
||||
arena->stats.split.nserviced++;
|
||||
#endif
|
||||
|
|
@ -2884,7 +2875,6 @@ arena_reg_fit(arena_t *arena, size_t size, region_t *reg, bool restore_split)
|
|||
} else
|
||||
arena_mru_cache(arena, next, next_size);
|
||||
}
|
||||
|
||||
#ifdef MALLOC_STATS
|
||||
arena->stats.nsplit++;
|
||||
#endif
|
||||
|
|
@ -2911,7 +2901,7 @@ arena_bin_reg_alloc(arena_t *arena, size_t size, bool fit)
|
|||
ret = arena_bin_pop(arena, bin);
|
||||
assert(region_next_size_get(&ret->sep) >= size);
|
||||
#ifdef MALLOC_STATS
|
||||
arena->stats.bins[bin].nfit++;
|
||||
arena->stats.bins[bin].nserviced++;
|
||||
#endif
|
||||
goto RETURN;
|
||||
}
|
||||
|
|
@ -2967,10 +2957,7 @@ arena_large_reg_alloc(arena_t *arena, size_t size, bool fit)
|
|||
arena_reg_fit(arena, size, ret, false);
|
||||
|
||||
#ifdef MALLOC_STATS
|
||||
if (size > bin_maxsize)
|
||||
arena->stats.large.nfit++;
|
||||
else
|
||||
arena->stats.large.noverfit++;
|
||||
arena->stats.large.nserviced++;
|
||||
#endif
|
||||
|
||||
RETURN:
|
||||
|
|
@ -3962,13 +3949,12 @@ ipalloc(arena_t *arena, size_t alignment, size_t size)
|
|||
}
|
||||
}
|
||||
|
||||
RETURN:
|
||||
#ifdef MALLOC_STATS
|
||||
malloc_mutex_lock(&arena->mtx);
|
||||
arena->stats.npalloc++;
|
||||
malloc_mutex_unlock(&arena->mtx);
|
||||
#endif
|
||||
|
||||
RETURN:
|
||||
if (opt_junk) {
|
||||
if (ret != NULL)
|
||||
memset(ret, 0xa5, size);
|
||||
|
|
@ -4118,12 +4104,12 @@ iralloc(arena_t *arena, void *ptr, size_t size)
|
|||
|
||||
idalloc(ptr);
|
||||
|
||||
RETURN:
|
||||
#ifdef MALLOC_STATS
|
||||
malloc_mutex_lock(&arena->mtx);
|
||||
arena->stats.nralloc++;
|
||||
malloc_mutex_unlock(&arena->mtx);
|
||||
#endif
|
||||
RETURN:
|
||||
return (ret);
|
||||
}
|
||||
|
||||
|
|
@ -4202,7 +4188,7 @@ malloc_print_stats(void)
|
|||
{
|
||||
arena_stats_t stats_arenas;
|
||||
arena_t *arena;
|
||||
unsigned i;
|
||||
unsigned i, narenas_used;
|
||||
|
||||
/* Print chunk stats. */
|
||||
{
|
||||
|
|
@ -4221,11 +4207,11 @@ malloc_print_stats(void)
|
|||
chunks_stats.curchunks);
|
||||
}
|
||||
|
||||
#ifdef MALLOC_STATS_ARENAS
|
||||
/* Print stats for each arena. */
|
||||
for (i = 0; i < narenas; i++) {
|
||||
for (i = 0, narenas_used = 0; i < narenas; i++) {
|
||||
arena = arenas[i];
|
||||
if (arena != NULL) {
|
||||
narenas_used++;
|
||||
malloc_printf(
|
||||
"\narenas[%u] statistics:\n", i);
|
||||
malloc_mutex_lock(&arena->mtx);
|
||||
|
|
@ -4236,22 +4222,29 @@ malloc_print_stats(void)
|
|||
" unused arena\n", i);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Merge arena stats from arenas. */
|
||||
memset(&stats_arenas, 0, sizeof(arena_stats_t));
|
||||
for (i = 0; i < narenas; i++) {
|
||||
arena = arenas[i];
|
||||
if (arena != NULL) {
|
||||
malloc_mutex_lock(&arena->mtx);
|
||||
stats_merge(arena, &stats_arenas);
|
||||
malloc_mutex_unlock(&arena->mtx);
|
||||
/*
|
||||
* Only print merged stats if multiple arenas were
|
||||
* used.
|
||||
*/
|
||||
if (narenas_used > 1) {
|
||||
/* Merge arena stats from arenas. */
|
||||
memset(&stats_arenas, 0, sizeof(arena_stats_t));
|
||||
for (i = 0; i < narenas; i++) {
|
||||
arena = arenas[i];
|
||||
if (arena != NULL) {
|
||||
malloc_mutex_lock(&arena->mtx);
|
||||
stats_merge(arena,
|
||||
&stats_arenas);
|
||||
malloc_mutex_unlock(
|
||||
&arena->mtx);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Print arena stats. */
|
||||
malloc_printf("\nMerged arena statistics:\n");
|
||||
stats_print(&stats_arenas);
|
||||
/* Print arena stats. */
|
||||
malloc_printf("\nMerged arena statistics:\n");
|
||||
stats_print(&stats_arenas);
|
||||
}
|
||||
}
|
||||
#endif /* #ifdef MALLOC_STATS */
|
||||
malloc_printf("--- End malloc statistics ---\n");
|
||||
|
|
|
|||
Loading…
Reference in a new issue