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io_uring/rsrc: add custom limit for node caching

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The number of entries in the rsrc node cache is limited to 512, which
still seems unnecessarily large. Add per cache thresholds and set to
to 32 for the rsrc node cache.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/d0cd538b944dac0bf878e276fc0199f21e6bccea.1680576071.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov
2023-04-04 13:39:57 +01:00
committed by Jens Axboe
parent 757ef4682b
commit 69bbc6ade9
4 changed files with 13 additions and 5 deletions
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6
io_uring/alloc_cache.h
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@@ -13,7 +13,7 @@ struct io_cache_entry {
static inline bool io_alloc_cache_put(struct io_alloc_cache *cache,
struct io_cache_entry *entry)
{
if (cache->nr_cached < IO_ALLOC_CACHE_MAX) {
if (cache->nr_cached < cache->max_cached) {
cache->nr_cached++;
wq_stack_add_head(&entry->node, &cache->list);
/* KASAN poisons object */
@@ -38,10 +38,12 @@ static inline struct io_cache_entry *io_alloc_cache_get(struct io_alloc_cache *c
return NULL;
}
static inline void io_alloc_cache_init(struct io_alloc_cache *cache, size_t size)
static inline void io_alloc_cache_init(struct io_alloc_cache *cache,
unsigned max_nr, size_t size)
{
cache->list.next = NULL;
cache->nr_cached = 0;
cache->max_cached = max_nr;
cache->elem_size = size;
}