Add stats: arena uptime.
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@ -2280,6 +2280,18 @@ struct extent_hooks_s {
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arena.</para></listitem>
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</varlistentry>
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<varlistentry id="stats.arenas.i.uptime">
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<term>
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<mallctl>stats.arenas.<i>.uptime</mallctl>
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(<type>uint64_t</type>)
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<literal>r-</literal>
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</term>
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<listitem><para>Time elapsed (in nanoseconds) since the arena was
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created. If <i> equals <constant>0</constant> or
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<constant>MALLCTL_ARENAS_ALL</constant>, this is the uptime since malloc
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initialization.</para></listitem>
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</varlistentry>
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<varlistentry id="stats.arenas.i.pactive">
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<term>
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<mallctl>stats.arenas.<i>.pactive</mallctl>
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@ -261,6 +261,8 @@ struct arena_s {
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* Synchronization: internal.
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*/
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base_t *base;
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/* Used to determine uptime. Read-only after initialization. */
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nstime_t create_time;
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};
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/* Used in conjunction with tsd for fast arena-related context lookup. */
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@ -145,6 +145,9 @@ typedef struct arena_stats_s {
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/* One element for each large size class. */
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malloc_large_stats_t lstats[NSIZES - NBINS];
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/* Arena uptime. */
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nstime_t uptime;
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} arena_stats_t;
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#endif /* JEMALLOC_INTERNAL_STATS_H */
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@ -330,6 +330,10 @@ arena_stats_merge(tsdn_t *tsdn, arena_t *arena, unsigned *nthreads,
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arena_prof_mutex_base)
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#undef READ_ARENA_MUTEX_PROF_DATA
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nstime_copy(&astats->uptime, &arena->create_time);
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nstime_update(&astats->uptime);
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nstime_subtract(&astats->uptime, &arena->create_time);
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for (szind_t i = 0; i < NBINS; i++) {
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arena_bin_t *bin = &arena->bins[i];
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@ -1965,6 +1969,9 @@ arena_new(tsdn_t *tsdn, unsigned ind, extent_hooks_t *extent_hooks) {
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arena->base = base;
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nstime_init(&arena->create_time, 0);
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nstime_update(&arena->create_time);
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/* We don't support reetrancy for arena 0 bootstrapping. */
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if (ind != 0 && hooks_arena_new_hook) {
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/*
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@ -157,6 +157,7 @@ CTL_PROTO(stats_arenas_i_lextents_j_nrequests)
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CTL_PROTO(stats_arenas_i_lextents_j_curlextents)
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INDEX_PROTO(stats_arenas_i_lextents_j)
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CTL_PROTO(stats_arenas_i_nthreads)
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CTL_PROTO(stats_arenas_i_uptime)
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CTL_PROTO(stats_arenas_i_dss)
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CTL_PROTO(stats_arenas_i_dirty_decay_time)
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CTL_PROTO(stats_arenas_i_muzzy_decay_time)
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@ -441,6 +442,7 @@ MUTEX_PROF_ARENA_MUTEXES
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static const ctl_named_node_t stats_arenas_i_node[] = {
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{NAME("nthreads"), CTL(stats_arenas_i_nthreads)},
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{NAME("uptime"), CTL(stats_arenas_i_uptime)},
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{NAME("dss"), CTL(stats_arenas_i_dss)},
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{NAME("dirty_decay_time"), CTL(stats_arenas_i_dirty_decay_time)},
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{NAME("muzzy_decay_time"), CTL(stats_arenas_i_muzzy_decay_time)},
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@ -778,6 +780,10 @@ MUTEX_PROF_ARENA_MUTEXES
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accum_atomic_zu(&sdstats->astats.tcache_bytes,
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&astats->astats.tcache_bytes);
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if (ctl_arena->arena_ind == 0) {
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sdstats->astats.uptime = astats->astats.uptime;
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}
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for (i = 0; i < NBINS; i++) {
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sdstats->bstats[i].nmalloc += astats->bstats[i].nmalloc;
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sdstats->bstats[i].ndalloc += astats->bstats[i].ndalloc;
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@ -2317,6 +2323,8 @@ CTL_RO_GEN(stats_arenas_i_dirty_decay_time, arenas_i(mib[2])->dirty_decay_time,
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CTL_RO_GEN(stats_arenas_i_muzzy_decay_time, arenas_i(mib[2])->muzzy_decay_time,
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ssize_t)
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CTL_RO_GEN(stats_arenas_i_nthreads, arenas_i(mib[2])->nthreads, unsigned)
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CTL_RO_GEN(stats_arenas_i_uptime,
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nstime_ns(&arenas_i(mib[2])->astats->astats.uptime), uint64_t)
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CTL_RO_GEN(stats_arenas_i_pactive, arenas_i(mib[2])->pactive, size_t)
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CTL_RO_GEN(stats_arenas_i_pdirty, arenas_i(mib[2])->pdirty, size_t)
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CTL_RO_GEN(stats_arenas_i_pmuzzy, arenas_i(mib[2])->pmuzzy, size_t)
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10
src/stats.c
10
src/stats.c
@ -421,6 +421,7 @@ stats_arena_print(void (*write_cb)(void *, const char *), void *cbopaque,
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size_t large_allocated;
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uint64_t large_nmalloc, large_ndalloc, large_nrequests;
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size_t tcache_bytes;
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uint64_t uptime;
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CTL_GET("arenas.page", &page, size_t);
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@ -433,6 +434,15 @@ stats_arena_print(void (*write_cb)(void *, const char *), void *cbopaque,
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"assigned threads: %u\n", nthreads);
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}
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CTL_M2_GET("stats.arenas.0.uptime", i, &uptime, uint64_t);
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if (json) {
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malloc_cprintf(write_cb, cbopaque,
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"\t\t\t\t\"uptime_ns\": %"FMTu64",\n", uptime);
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} else {
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malloc_cprintf(write_cb, cbopaque,
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"uptime: %"FMTu64"\n", uptime);
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}
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CTL_M2_GET("stats.arenas.0.dss", i, &dss, const char *);
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if (json) {
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malloc_cprintf(write_cb, cbopaque,
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