From 2773395b34883fe54418de188733a63bb38e0ad6 Mon Sep 17 00:00:00 2001 From: Steve Dickson Date: Thu, 21 Jul 2011 13:49:02 -0400 Subject: [PATCH] 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 Signed-off-by: Trond Myklebust --- net/sunrpc/xprtrdma/xprt_rdma.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index cae761a..5d1cfe5 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -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 */ \ -- 2.7.4