From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:32895) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dq8gn-0003hM-6J for qemu-devel@nongnu.org; Thu, 07 Sep 2017 22:06:42 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dq8gi-0002aF-7g for qemu-devel@nongnu.org; Thu, 07 Sep 2017 22:06:37 -0400 Received: from mx1.redhat.com ([209.132.183.28]:37028) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dq8gi-0002Z9-1V for qemu-devel@nongnu.org; Thu, 07 Sep 2017 22:06:32 -0400 From: Jason Wang Date: Fri, 8 Sep 2017 10:05:20 +0800 Message-Id: <1504836324-4871-15-git-send-email-jasowang@redhat.com> In-Reply-To: <1504836324-4871-1-git-send-email-jasowang@redhat.com> References: <1504836324-4871-1-git-send-email-jasowang@redhat.com> Subject: [Qemu-devel] [PULL 14/18] net/colo-compare.c: Adjust net queue pop order for performance List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: peter.maydell@linaro.org, qemu-devel@nongnu.org Cc: Zhang Chen , Jason Wang From: Zhang Chen The packet_enqueue() use g_queue_push_tail() to enqueue net packet, so it is more efficent way use g_queue_pop_head() to get packet for compare. That will improve the success rate of comparison. In my test the performance of ftp put 1000M file will increase 10% Signed-off-by: Zhang Chen Signed-off-by: Jason Wang --- net/colo-compare.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/colo-compare.c b/net/colo-compare.c index 612fbac..f480315 100644 --- a/net/colo-compare.c +++ b/net/colo-compare.c @@ -484,7 +484,7 @@ static void colo_compare_connection(void *opaque, void *user_data) while (!g_queue_is_empty(&conn->primary_list) && !g_queue_is_empty(&conn->secondary_list)) { - pkt = g_queue_pop_tail(&conn->primary_list); + pkt = g_queue_pop_head(&conn->primary_list); switch (conn->ip_proto) { case IPPROTO_TCP: result = g_queue_find_custom(&conn->secondary_list, @@ -522,7 +522,7 @@ static void colo_compare_connection(void *opaque, void *user_data) * until next comparison. */ trace_colo_compare_main("packet different"); - g_queue_push_tail(&conn->primary_list, pkt); + g_queue_push_head(&conn->primary_list, pkt); /* TODO: colo_notify_checkpoint();*/ break; } -- 2.7.4