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authorDaniel Xu <dxu@dxuuu.xyz>2019-09-14 14:23:45 -0700
committerJens Axboe <axboe@kernel.dk>2019-09-14 17:06:22 -0600
commit5277deaab9f98229bdfb8d1e30019b6c25052708 (patch)
tree62ac6833609ad27867e9fc58b0c3bee8c82430e6 /fs
parentb2a9eadab85730935f5a6fe19f3f61faaaced601 (diff)
io_uring: increase IORING_MAX_ENTRIES to 32K
Some workloads can require far more than 4K oustanding entries. For example memcached can have ~300K sockets over ~40 cores. Bumping the max to 32K seems to work pretty well. Reported-by: Dan Melnic <dmm@fb.com> Signed-off-by: Daniel Xu <dxu@dxuuu.xyz> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs')
-rw-r--r--fs/io_uring.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 3c8859d417eb..0dadbdbead0f 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -75,7 +75,7 @@
#include "internal.h"
-#define IORING_MAX_ENTRIES 4096
+#define IORING_MAX_ENTRIES 32768
#define IORING_MAX_FIXED_FILES 1024
struct io_uring {