From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Jones Subject: KVM scaling question about compile time Date: Sat, 30 Aug 2014 14:38:53 +0800 Message-ID: <5401717D.9060005@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Return-path: Received: from msr4.hinet.net ([168.95.4.104]:37834 "EHLO msr4.hinet.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751026AbaH3Iat (ORCPT ); Sat, 30 Aug 2014 04:30:49 -0400 Received: from [192.168.0.102] (220-135-115-6.HINET-IP.hinet.net [220.135.115.6]) by msr4.hinet.net (8.14.2/8.14.2) with ESMTP id s7U6crbv028696 for ; Sat, 30 Aug 2014 14:38:54 +0800 (CST) Sender: kvm-owner@vger.kernel.org List-ID: Hi, I'm running KVM on Ubuntu 14.04 server. I run a single VM with a single vcpu on the host and compile mysql source, it takes about 13 minutes. When I run 2 VMs compiling mysql source at the same time, configured with one single vcpu, it takes about 17 minutes. Is it possible takes a less compile time when I run 2 VMs or more VMs compiling mysql? If so, would you tell me how to do? Thank you. Regards, Dave