Increase mempool size from 16 to 64 entries. When swapping to dm-crypt, all available memory is temporarily exhausted and dm-crypt is only using the mempool reserve. Increasing mempool reserve improves swapping performance.
Signed-off-by: Mikulas Patocka <[email protected]> Index: linux-2.6/drivers/md/dm-crypt.c =================================================================== --- linux-2.6.orig/drivers/md/dm-crypt.c +++ linux-2.6/drivers/md/dm-crypt.c @@ -181,7 +181,7 @@ struct crypt_config { u8 key[0]; }; -#define MIN_IOS 16 +#define MIN_IOS 64 static void clone_init(struct dm_crypt_io *, struct bio *); static void kcryptd_queue_crypt(struct dm_crypt_io *io); -- dm-devel mailing list [email protected] https://www.redhat.com/mailman/listinfo/dm-devel
