[Devel] [PATCH VZ9] drivers/vhost/blk: increase max queues to 128

Andrey Zhadchenko andrey.zhadchenko at virtuozzo.com
Mon Feb 19 13:09:41 MSK 2024


8 queues is too few, for example vhost-scsi have 128.
Increase to 32 queues max, as we do not want to eat too much
memory. As for performance, 32 queues will top around 3M iops,
which should be fine for almost all cases

https://virtuozzo.atlassian.net/browse/PSBM-152241
Signed-off-by: Andrey Zhadchenko <andrey.zhadchenko at virtuozzo.com>
---
 drivers/vhost/blk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/vhost/blk.c b/drivers/vhost/blk.c
index 392c5de1d916..9ef51335449f 100644
--- a/drivers/vhost/blk.c
+++ b/drivers/vhost/blk.c
@@ -45,7 +45,7 @@ enum {
  */
 #define VHOST_DEV_PKT_WEIGHT 256
 
-#define VHOST_BLK_VQ_MAX 8
+#define VHOST_BLK_VQ_MAX 32
 
 #define VHOST_MAX_METADATA_IOV 1
 
-- 
2.39.3



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