[rds-devel] [PATCH 1/1] net: rds: use memset to optimize the recv
Zhu Yanjun
yanjun.zhu at oracle.com
Fri Sep 14 01:45:38 PDT 2018
The function rds_inc_init is in recv process. To use memset can optimize
the function rds_inc_init.
The test result:
Before:
1) + 24.950 us | rds_inc_init [rds]();
After:
1) + 10.990 us | rds_inc_init [rds]();
Signed-off-by: Zhu Yanjun <yanjun.zhu at oracle.com>
---
net/rds/recv.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/net/rds/recv.c b/net/rds/recv.c
index 504cd6bcc54c..a9399ddbb7bf 100644
--- a/net/rds/recv.c
+++ b/net/rds/recv.c
@@ -43,8 +43,6 @@
void rds_inc_init(struct rds_incoming *inc, struct rds_connection *conn,
struct in6_addr *saddr)
{
- int i;
-
refcount_set(&inc->i_refcount, 1);
INIT_LIST_HEAD(&inc->i_item);
inc->i_conn = conn;
@@ -53,8 +51,7 @@ void rds_inc_init(struct rds_incoming *inc, struct rds_connection *conn,
inc->i_rx_tstamp.tv_sec = 0;
inc->i_rx_tstamp.tv_usec = 0;
- for (i = 0; i < RDS_RX_MAX_TRACES; i++)
- inc->i_rx_lat_trace[i] = 0;
+ memset(inc->i_rx_lat_trace, 0, sizeof(inc->i_rx_lat_trace));
}
EXPORT_SYMBOL_GPL(rds_inc_init);
--
2.17.1
More information about the rds-devel
mailing list