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Tcache batching: Plumbing

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In the next commit, we'll start using the batcher to eliminate mutex traffic.
To avoid cluttering up that commit with the random bits of busy-work it entails,
we'll centralize them here.  This commit introduces:
- A batched bin type.
- The ability to mix batched and unbatched bins in the arena.
- Conf parsing to set batches per size and a max batched size.
- mallctl access to the corresponding opt-namespace keys.
- Stats output of the above.
This commit is contained in:
David Goldblatt
2024-02-02 13:20:14 -08:00
committed by David Goldblatt
parent 70c94d7474
commit c085530c71
11 changed files with 121 additions and 35 deletions
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7
src/ctl.c
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@@ -129,6 +129,8 @@ CTL_PROTO(opt_zero)
CTL_PROTO(opt_utrace)
CTL_PROTO(opt_xmalloc)
CTL_PROTO(opt_experimental_infallible_new)
CTL_PROTO(opt_max_batched_size)
CTL_PROTO(opt_remote_free_max_batch)
CTL_PROTO(opt_tcache)
CTL_PROTO(opt_tcache_max)
CTL_PROTO(opt_tcache_nslots_small_min)
@@ -480,6 +482,8 @@ static const ctl_named_node_t opt_node[] = {
{NAME("xmalloc"), CTL(opt_xmalloc)},
{NAME("experimental_infallible_new"),
CTL(opt_experimental_infallible_new)},
{NAME("max_batched_size"), CTL(opt_max_batched_size)},
{NAME("remote_free_max_batch"), CTL(opt_remote_free_max_batch)},
{NAME("tcache"), CTL(opt_tcache)},
{NAME("tcache_max"), CTL(opt_tcache_max)},
{NAME("tcache_nslots_small_min"),
@@ -2203,6 +2207,9 @@ CTL_RO_NL_CGEN(config_utrace, opt_utrace, opt_utrace, bool)
CTL_RO_NL_CGEN(config_xmalloc, opt_xmalloc, opt_xmalloc, bool)
CTL_RO_NL_CGEN(config_enable_cxx, opt_experimental_infallible_new,
opt_experimental_infallible_new, bool)
CTL_RO_NL_GEN(opt_max_batched_size, opt_bin_info_max_batched_size, size_t)
CTL_RO_NL_GEN(opt_remote_free_max_batch, opt_bin_info_remote_free_max_batch,
size_t)
CTL_RO_NL_GEN(opt_tcache, opt_tcache, bool)
CTL_RO_NL_GEN(opt_tcache_max, opt_tcache_max, size_t)
CTL_RO_NL_GEN(opt_tcache_nslots_small_min, opt_tcache_nslots_small_min,