Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757569AbcCURt7 (ORCPT ); Mon, 21 Mar 2016 13:49:59 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55528 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757473AbcCURt5 (ORCPT ); Mon, 21 Mar 2016 13:49:57 -0400 From: Bandan Das To: Christian Borntraeger Cc: tj@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, mst@redhat.com, jiangshanlai@gmail.com, RAPOPORT@il.ibm.com Subject: Re: [RFC PATCH 0/4] cgroup aware workqueues References: <1458339291-4093-1-git-send-email-bsd@redhat.com> <56EFB0E0.2080405@de.ibm.com> Date: Mon, 21 Mar 2016 13:49:55 -0400 In-Reply-To: <56EFB0E0.2080405@de.ibm.com> (Christian Borntraeger's message of "Mon, 21 Mar 2016 09:29:20 +0100") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 875 Lines: 20 Christian Borntraeger writes: > On 03/18/2016 11:14 PM, Bandan Das wrote: > [..] >> Netperf: >> Two guests running netperf in parallel. >> Without patches With patches >> >> TCP_STREAM (10^6 bits/second) 975.45 978.88 >> TCP_RR (Trans/second) 20121 18820.82 >> UDP_STREAM (10^6 bits/second) 1287.82 1184.5 >> UDP_RR (Trans/second) 20766.72 19667.08 >> Time a 4G iso download 2m 33 seconds 3m 02 seconds > > So TCP stream stays the same everything else shows a regression? Not good. > Have you an idea why this happens? I am not sure yet but my guess is the way these patches implement cgroup support. I will run some tests just with workqueues (and without these patches) and see if the newer numbers are consistent with these.