mirror of
https://github.com/jemalloc/jemalloc
synced 2026-06-08 15:01:07 +00:00
David Goldblatt
f9c0b5f7f8
This lets us easily see what fraction of flush load is being taken up by the bins, and helps guide future optimization approaches (for example: should we prefetch during cache bin fills? It depends on how many objects the average fill pops out of the batch).
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
#ifndef JEMALLOC_INTERNAL_BIN_STATS_H
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#define JEMALLOC_INTERNAL_BIN_STATS_H
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#include "jemalloc/internal/jemalloc_preamble.h"
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#include "jemalloc/internal/mutex_prof.h"
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typedef struct bin_stats_s bin_stats_t;
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struct 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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/* Current size of nonfull slabs heap in this bin. */
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size_t nonfull_slabs;
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uint64_t batch_pops;
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uint64_t batch_failed_pushes;
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uint64_t batch_pushes;
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uint64_t batch_pushed_elems;
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};
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typedef struct bin_stats_data_s bin_stats_data_t;
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struct bin_stats_data_s {
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bin_stats_t stats_data;
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mutex_prof_data_t mutex_data;
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};
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#endif /* JEMALLOC_INTERNAL_BIN_STATS_H */
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