Commit 2773395b authored Jul 21, 2011 by Steve Dickson Committed by Trond Myklebust Jul 25, 2011

RDMA: Increasing RPCRDMA_MAX_DATA_SEGS



Our performance team has noticed that increasing
RPCRDMA_MAX_DATA_SEGS from 8 to 64 significantly
increases throughput when using the RDMA transport.

Signed-off-by: Steve Dickson <steved@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

parent 5f00bcb3

net/sunrpc/xprtrdma/xprt_rdma.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -109,7 +109,7 @@ struct rpcrdma_ep {
		*/

		/* temporary static scatter/gather max */
		#define RPCRDMA_MAX_DATA_SEGS (8) /* max scatter/gather */
		#define RPCRDMA_MAX_DATA_SEGS (64) /* max scatter/gather */
		#define RPCRDMA_MAX_SEGS (RPCRDMA_MAX_DATA_SEGS + 2) /* head+tail = 2 */
		#define MAX_RPCRDMAHDR (\
		/* max supported RPC/RDMA header */ \