| Message ID | 20180917024930.22171-1-yanjun.zhu@oracle.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | [PATCHv2,net-next,1/1] net: rds: use memset to optimize the recv | expand |
From: Zhu Yanjun <yanjun.zhu@oracle.com> Date: Sun, 16 Sep 2018 22:49:30 -0400 > 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](); > > Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> > Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com> > --- > V1->V2: a new patch for net-next Applied.
diff --git a/net/rds/recv.c b/net/rds/recv.c index 12719653188a..727639dac8a7 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; @@ -52,8 +50,7 @@ void rds_inc_init(struct rds_incoming *inc, struct rds_connection *conn, inc->i_rdma_cookie = 0; inc->i_rx_tstamp = ktime_set(0, 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);
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](); Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com> --- V1->V2: a new patch for net-next --- net/rds/recv.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)