From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yang Yingliang Subject: Re: [PATCH] net: less interrupt masking in NAPI Date: Wed, 3 Dec 2014 17:26:00 +0800 Message-ID: <547ED728.2010703@huawei.com> References: <1414937973.31792.37.camel@edumazet-glaptop2.roam.corp.google.com> <20141103.122538.387451917276174830.davem@davemloft.net> <547EBC66.4040301@huawei.com> <1417592482.5303.132.camel@edumazet-glaptop2.roam.corp.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: David Miller , , To: Eric Dumazet Return-path: Received: from szxga01-in.huawei.com ([119.145.14.64]:39296 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751061AbaLCJ1W (ORCPT ); Wed, 3 Dec 2014 04:27:22 -0500 In-Reply-To: <1417592482.5303.132.camel@edumazet-glaptop2.roam.corp.google.com> Sender: netdev-owner@vger.kernel.org List-ID: On 2014/12/3 15:41, Eric Dumazet wrote: > On Wed, 2014-12-03 at 15:31 +0800, Yang Yingliang wrote: > >> This patch can resolve my performance problem. >> Will/Can this patch queue for stable ? > > Hmm.. please give us more details, I am surprised it can have > a big impact. > > > > Before this patch, when a large network flow arrives, some other processes response slowly or even don't response because the cpu is dealing with softirq. After this patch, under pressure, much more softirq is doing in ksoftirqd. The other processes be scheduled. My system has dual core. Regards, Yang