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>
2019-09-14 14:23:45 -07:00
parent b2a9eadab8
commit 5277deaab9
1 changed files with 1 additions and 1 deletions
@@ -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 {