[PATCH 1/2] librdmacm/rstream: Reduce default transfer count

[PATCH 1/2] librdmacm/rstream: Reduce default transfer count

[sean.hefty-ral2JQCrhuEAvxtiuMwx3w]

From: Sean Hefty <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

1 million ping-pong transfers takes over 3 seconds to
complete, and I'm impatient.  Reduce the default number of
transfers for small messsages to speed up running
performance tests, especially when running over slower
connections, like TCP sockets or over a WAN.

Signed-off-by: Sean Hefty <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
 examples/common.c |   10 ++++------
 1 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/examples/common.c b/examples/common.c
index 939f50c..4eb5bbe 100644
--- a/examples/common.c
+++ b/examples/common.c
@@ -117,16 +117,14 @@ void cnt_str(char *str, size_t ssize, long long cnt)
 
 int size_to_count(int size)
 {
-	if (size >= 1000000)
+	if (size >= (1 << 20))
 		return 100;
-	else if (size >= 100000)
+	else if (size >= (1 << 16))
 		return 1000;
-	else if (size >= 10000)
+	else if (size >= (1 << 10))
 		return 10000;
-	else if (size >= 1000)
-		return 100000;
 	else
-		return 1000000;
+		return 100000;
 }
 
 void format_buf(void *buf, int size)
-- 
1.7.3

--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH 2/2] librdmacm/rsocket: Fix resetting O_NONBLOCK after calling shutdown

[sean.hefty-ral2JQCrhuEAvxtiuMwx3w]

From: Sean Hefty <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

Shutdown switches an rsocket from nonblocking to blocking to
ensure that all data has been sent.  After completing all
transfers, it should switch back to nonblocking; this handles
partial shutdown situations, where only half the connection
is shut down.  However, the code uses the value of '1' to
set the nonblocking flag, rather than O_NONBLOCK.  Fix this.

Signed-off-by: Sean Hefty <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
 src/rsocket.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/rsocket.c b/src/rsocket.c
index 9b6c667..03f5dc4 100644
--- a/src/rsocket.c
+++ b/src/rsocket.c
@@ -3023,7 +3023,7 @@ int rshutdown(int socket, int how)
 		rs_process_cq(rs, 0, rs_conn_all_sends_done);
 
 	if ((rs->fd_flags & O_NONBLOCK) && (rs->state & rs_connected))
-		rs_set_nonblocking(rs, 1);
+		rs_set_nonblocking(rs, rs->fd_flags);
 
 	return 0;
 }
@@ -3040,7 +3040,7 @@ static void ds_shutdown(struct rsocket *rs)
 	ds_process_cqs(rs, 0, ds_all_sends_done);
 
 	if (rs->fd_flags & O_NONBLOCK)
-		rs_set_nonblocking(rs, 1);
+		rs_set_nonblocking(rs, rs->fd_flags);
 }
 
 int rclose(int socket)
-- 
1.7.3

--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html