From: Santosh Shilimkar <santosh.shilimkar@oracle.com>
To: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, davem@davemloft.net,
ssantosh@kernel.org,
Santosh Shilimkar <santosh.shilimkar@oracle.com>
Subject: [PATCH 5/6] RDS: flush the FMR pool less often
Date: Tue, 25 Aug 2015 12:02:02 -0700 [thread overview]
Message-ID: <1440529323-4171-6-git-send-email-santosh.shilimkar@oracle.com> (raw)
In-Reply-To: <1440529323-4171-1-git-send-email-santosh.shilimkar@oracle.com>
FMR flush is an expensive and time consuming operation. Reduce the
frequency of FMR pool flush by 50% so that more FMR work gets accumulated
for more efficient flushing.
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
---
net/rds/ib_rdma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/rds/ib_rdma.c b/net/rds/ib_rdma.c
index 2ac78c9..e596dfb 100644
--- a/net/rds/ib_rdma.c
+++ b/net/rds/ib_rdma.c
@@ -737,7 +737,7 @@ void rds_ib_free_mr(void *trans_private, int invalidate)
/* If we've pinned too many pages, request a flush */
if (atomic_read(&pool->free_pinned) >= pool->max_free_pinned ||
- atomic_read(&pool->dirty_count) >= pool->max_items / 10)
+ atomic_read(&pool->dirty_count) >= pool->max_items / 5)
queue_delayed_work(rds_ib_fmr_wq, &pool->flush_worker, 10);
if (invalidate) {
--
1.9.1
next prev parent reply other threads:[~2015-08-25 19:02 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-25 19:01 [PATCH 0/6] RDS: Few more fixes Santosh Shilimkar
2015-08-25 19:01 ` [PATCH 1/6] RDS: fix the dangling reference to rds_ib_incoming_slab Santosh Shilimkar
2015-08-25 19:01 ` [PATCH 2/6] RDS: Fix rds MR reference count in rds_rdma_unuse() Santosh Shilimkar
2015-08-25 19:02 ` [PATCH 3/6] RDS: fix fmr pool dirty_count Santosh Shilimkar
2015-08-25 19:02 ` [PATCH 4/6] RDS: push FMR pool flush work to its own worker Santosh Shilimkar
2015-08-25 19:02 ` Santosh Shilimkar [this message]
2015-08-25 19:02 ` [PATCH 6/6] RDS: remove superfluous from rds_ib_alloc_fmr() Santosh Shilimkar
2015-08-25 23:28 ` [PATCH 0/6] RDS: Few more fixes David Miller
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