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OPTIM: pools: reduce local pool cache size to 512kB

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Now that we support batched allocations/releases, it appears that we can
reach the same performance on H2 with shared pools and 256kB thread-local
cache as without shared pools, a fast allocator and 1MB thread-local cache.
With 512kB we're up to 10% faster on highly multiplexed H2 than without the
shared cache. This was tested on a 16-core ARM machine. Thus it's time to
slightly reduce the per-thread memory cost, which may also improve the
performance on machines with smaller L2 caches. It essentially reverts
commit f587003fe ("MINOR: pools: double the local pool cache size to 1 MB").
This commit is contained in:
Willy Tarreau 2022-01-02 19:38:54 +01:00
parent 1513c5479a
commit f5e94b2f47
1 changed files with 1 additions and 1 deletions
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2
include/haproxy/defaults.h
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@ -404,7 +404,7 @@
/* default per-thread pool cache size when enabled */
#ifndef CONFIG_HAP_POOL_CACHE_SIZE
#define CONFIG_HAP_POOL_CACHE_SIZE 1048576
#define CONFIG_HAP_POOL_CACHE_SIZE 524288
#endif
#ifndef CONFIG_HAP_POOL_CLUSTER_SIZE