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Move bin stats code from arena to bin module.

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David T. Goldblatt 2017-10-01 18:27:40 -07:00 committed by David Goldblatt
parent 48bb4a056b
commit 8aafa270fd
3 changed files with 27 additions and 15 deletions
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21
include/jemalloc/internal/bin.h
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@ -78,10 +78,29 @@ struct bin_s {
malloc_bin_stats_t stats;
};
/* Returns true on error. */
/* Initializes a bin to empty. Returns true on error. */
bool bin_init(bin_t *bin);
/* Forking. */
void bin_prefork(tsdn_t *tsdn, bin_t *bin);
void bin_postfork_parent(tsdn_t *tsdn, bin_t *bin);
void bin_postfork_child(tsdn_t *tsdn, bin_t *bin);
/* Stats. */
static inline void
bin_stats_merge(tsdn_t *tsdn, malloc_bin_stats_t *dst_bin_stats, bin_t *bin) {
malloc_mutex_lock(tsdn, &bin->lock);
malloc_mutex_prof_read(tsdn, &dst_bin_stats->mutex_data, &bin->lock);
dst_bin_stats->nmalloc += bin->stats.nmalloc;
dst_bin_stats->ndalloc += bin->stats.ndalloc;
dst_bin_stats->nrequests += bin->stats.nrequests;
dst_bin_stats->curregs += bin->stats.curregs;
dst_bin_stats->nfills += bin->stats.nfills;
dst_bin_stats->nflushes += bin->stats.nflushes;
dst_bin_stats->nslabs += bin->stats.nslabs;
dst_bin_stats->reslabs += bin->stats.reslabs;
dst_bin_stats->curslabs += bin->stats.curslabs;
malloc_mutex_unlock(tsdn, &bin->lock);
}
#endif /* JEMALLOC_INTERNAL_BIN_H */

6
include/jemalloc/internal/stats.h
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@ -6,6 +6,12 @@
#include "jemalloc/internal/mutex.h"
#include "jemalloc/internal/size_classes.h"
/*
* The synchronization for stats counters may piggyback on existing
* synchronization in the associated data. Therefore, the merging functions for
* a module's stats will lie in the module, instead of with the stats.
*/
/* OPTION(opt, var_name, default, set_value_to) */
#define STATS_PRINT_OPTIONS \
OPTION('J', json, false, true) \

15
src/arena.c
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@ -337,20 +337,7 @@ arena_stats_merge(tsdn_t *tsdn, arena_t *arena, unsigned *nthreads,
nstime_subtract(&astats->uptime, &arena->create_time);
for (szind_t i = 0; i < NBINS; i++) {
bin_t *bin = &arena->bins[i];
malloc_mutex_lock(tsdn, &bin->lock);
malloc_mutex_prof_read(tsdn, &bstats[i].mutex_data, &bin->lock);
bstats[i].nmalloc += bin->stats.nmalloc;
bstats[i].ndalloc += bin->stats.ndalloc;
bstats[i].nrequests += bin->stats.nrequests;
bstats[i].curregs += bin->stats.curregs;
bstats[i].nfills += bin->stats.nfills;
bstats[i].nflushes += bin->stats.nflushes;
bstats[i].nslabs += bin->stats.nslabs;
bstats[i].reslabs += bin->stats.reslabs;
bstats[i].curslabs += bin->stats.curslabs;
malloc_mutex_unlock(tsdn, &bin->lock);
bin_stats_merge(tsdn, &bstats[i], &arena->bins[i]);
}
}