Commit 5277deaa authored Sep 14, 2019 by Daniel Xu Committed by Jens Axboe Sep 14, 2019

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>

parent b2a9eada

fs/io_uring.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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 {

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