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Enable per-tcache tcache_max

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1. add tcache_max and nhbins into tcache_t so that they are per-tcache,
   with one auto tcache per thread, it's also per-thread;
2. add mallctl for each thread to set its own tcache_max (of its auto tcache);
3. store the maximum number of items in each bin instead of using a global storage;
4. add tests for the modifications above.
5. Rename `nhbins` and `tcache_maxclass` to `global_do_not_change_nhbins` and `global_do_not_change_tcache_maxclass`.
This commit is contained in:
guangli-dai 2023-08-06 11:38:30 -07:00 • committed by Qi Wang
parent fbca96c433
commit a442d9b895
15 changed files with 528 additions and 222 deletions
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3
include/jemalloc/internal/cache_bin.h
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@ -125,6 +125,9 @@ struct cache_bin_s {
* array. Immutable after initialization.
*/
uint16_t low_bits_empty;
/* The maximum number of cached items in the bin. */
cache_bin_info_t bin_info;
};
/*