From mboxrd@z Thu Jan 1 00:00:00 1970 From: wei.liu2@citrix.com (Wei Liu) Date: Tue, 2 Jun 2015 10:52:37 +0100 Subject: [Xen-devel] "tcp: refine TSO autosizing" causes performance regression on Xen In-Reply-To: <1429188136.7346.198.camel@edumazet-glaptop2.roam.corp.google.com> References: <552E9E8D.1080000@eu.citrix.com> <1429118948.7346.114.camel@edumazet-glaptop2.roam.corp.google.com> <552EA2BC.5000707@eu.citrix.com> <1429120373.7346.125.camel@edumazet-glaptop2.roam.corp.google.com> <552EA844.5010308@eu.citrix.com> <1429121979.7346.138.camel@edumazet-glaptop2.roam.corp.google.com> <552F7936.9070205@eu.citrix.com> <552F7EF4.9030107@iogearbox.net> <552F887A.4060708@eu.citrix.com> <1429188136.7346.198.camel@edumazet-glaptop2.roam.corp.google.com> Message-ID: <20150602095237.GL19403@zion.uk.xensource.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Eric Sorry for coming late to the discussion. On Thu, Apr 16, 2015 at 05:42:16AM -0700, Eric Dumazet wrote: > On Thu, 2015-04-16 at 11:01 +0100, George Dunlap wrote: > > > He suggested that after he'd been prodded by 4 more e-mails in which two > > of us guessed what he was trying to get at. That's what I was > > complaining about. > > My big complain is that I suggested to test to double the sysctl, which > gave good results. > Do I understand correctly that it's acceptable to you to double the size of the buffer? If so I will send a patch to do that. Wei. > Then you provided a patch using a 8x factor. How does that sound ? > > Next time I ask a raise, I should try a 8x factor as well, who knows, > it might be accepted. > >