120 lines
3.0 KiB
C
120 lines
3.0 KiB
C
#ifndef JEMALLOC_INTERNAL_STATS_STRUCTS_H
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#define JEMALLOC_INTERNAL_STATS_STRUCTS_H
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struct tcache_bin_stats_s {
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/*
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* Number of allocation requests that corresponded to the size of this
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* bin.
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*/
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uint64_t nrequests;
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};
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struct malloc_bin_stats_s {
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/*
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* Total number of allocation/deallocation requests served directly by
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* the bin. Note that tcache may allocate an object, then recycle it
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* many times, resulting many increments to nrequests, but only one
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* each to nmalloc and ndalloc.
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*/
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uint64_t nmalloc;
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uint64_t ndalloc;
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/*
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* Number of allocation requests that correspond to the size of this
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* bin. This includes requests served by tcache, though tcache only
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* periodically merges into this counter.
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*/
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uint64_t nrequests;
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/*
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* Current number of regions of this size class, including regions
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* currently cached by tcache.
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*/
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size_t curregs;
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/* Number of tcache fills from this bin. */
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uint64_t nfills;
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/* Number of tcache flushes to this bin. */
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uint64_t nflushes;
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/* Total number of slabs created for this bin's size class. */
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uint64_t nslabs;
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/*
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* Total number of slabs reused by extracting them from the slabs heap
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* for this bin's size class.
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*/
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uint64_t reslabs;
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/* Current number of slabs in this bin. */
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size_t curslabs;
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};
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struct malloc_large_stats_s {
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/*
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* Total number of allocation/deallocation requests served directly by
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* the arena.
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*/
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uint64_t nmalloc;
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uint64_t ndalloc;
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/*
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* Number of allocation requests that correspond to this size class.
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* This includes requests served by tcache, though tcache only
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* periodically merges into this counter.
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*/
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uint64_t nrequests;
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/* Current number of allocations of this size class. */
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size_t curlextents;
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};
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/*
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* Arena stats. Note that fields marked "derived" are not directly maintained
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* within the arena code; rather their values are derived during stats merge
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* requests.
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*/
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struct arena_stats_s {
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#ifndef JEMALLOC_ATOMIC_U64
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malloc_mutex_t mtx;
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#endif
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/* Number of bytes currently mapped, excluding retained memory. */
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size_t mapped; /* Derived. */
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/*
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* Number of bytes currently retained as a side effect of munmap() being
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* disabled/bypassed. Retained bytes are technically mapped (though
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* always decommitted or purged), but they are excluded from the mapped
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* statistic (above).
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*/
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size_t retained; /* Derived. */
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/*
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* Total number of purge sweeps, total number of madvise calls made,
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* and total pages purged in order to keep dirty unused memory under
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* control.
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*/
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uint64_t npurge;
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uint64_t nmadvise;
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uint64_t purged;
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size_t base; /* Derived. */
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size_t internal;
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size_t resident; /* Derived. */
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size_t allocated_large; /* Derived. */
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uint64_t nmalloc_large; /* Derived. */
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uint64_t ndalloc_large; /* Derived. */
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uint64_t nrequests_large; /* Derived. */
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/* Number of bytes cached in tcache associated with this arena. */
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size_t tcache_bytes; /* Derived. */
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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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};
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#endif /* JEMALLOC_INTERNAL_STATS_STRUCTS_H */
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