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From: Jens Axboe <[email protected]>
To: io-uring <[email protected]>
Subject: [PATCH] io_uring/alloc_cache: shrink default max entries from 512 to 128
Date: Tue, 19 Mar 2024 17:37:43 -0600	[thread overview]
Message-ID: <[email protected]> (raw)

In practice, we just need to recycle a few elements for (by far) most
use cases. Shrink the total size down from 512 to 128, which should be
more than plenty.

Signed-off-by: Jens Axboe <[email protected]>

---

diff --git a/io_uring/alloc_cache.h b/io_uring/alloc_cache.h
index bf2fb26a6539..138ad14b0b12 100644
--- a/io_uring/alloc_cache.h
+++ b/io_uring/alloc_cache.h
@@ -4,7 +4,7 @@
 /*
  * Don't allow the cache to grow beyond this size.
  */
-#define IO_ALLOC_CACHE_MAX	512
+#define IO_ALLOC_CACHE_MAX	128
 
 struct io_cache_entry {
 	struct io_wq_work_node node;

-- 
Jens Axboe


                 reply	other threads:[~2024-03-19 23:37 UTC|newest]

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