From: Chuck Lever <cel@kernel.org>
To: NeilBrown <neil@brown.name>, Jeff Layton <jlayton@kernel.org>,
Olga Kornievskaia <okorniev@redhat.com>,
Dai Ngo <dai.ngo@oracle.com>, Tom Talpey <tom@talpey.com>
Cc: <linux-nfs@vger.kernel.org>, <linux-rdma@vger.kernel.org>,
Chuck Lever <chuck.lever@oracle.com>
Subject: [PATCH v1] svcrdma: Increase the server's default RPC/RDMA credit grant
Date: Fri, 26 Sep 2025 11:52:35 -0400 [thread overview]
Message-ID: <20250926155235.60924-1-cel@kernel.org> (raw)
From: Chuck Lever <chuck.lever@oracle.com>
Now that the nfsd thread count can scale to more threads, permit
individual clients to make more use of those threads. Increase the
RPC/RDMA per-connection credit grant from 64 to 128 -- same as the
Linux NFS client.
Simple single client fio-based benchmarking so far shows only
improvement, no regression.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
include/linux/sunrpc/svc_rdma.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
index 22704c2e5b9b..57f4fd94166a 100644
--- a/include/linux/sunrpc/svc_rdma.h
+++ b/include/linux/sunrpc/svc_rdma.h
@@ -131,7 +131,7 @@ static inline struct svcxprt_rdma *svc_rdma_rqst_rdma(struct svc_rqst *rqstp)
*/
enum {
RPCRDMA_LISTEN_BACKLOG = 10,
- RPCRDMA_MAX_REQUESTS = 64,
+ RPCRDMA_MAX_REQUESTS = 128,
RPCRDMA_MAX_BC_REQUESTS = 2,
};
--
2.51.0
next reply other threads:[~2025-09-26 15:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-26 15:52 Chuck Lever [this message]
2025-10-01 19:35 ` [PATCH v1] svcrdma: Increase the server's default RPC/RDMA credit grant Mike Snitzer
2025-10-01 20:18 ` Chuck Lever
2025-10-01 22:44 ` Mike Snitzer
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