From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Jackson Subject: [OSSTEST RFC PATCH 00/13] Planner: Performance improvement Date: Wed, 2 Sep 2015 16:45:06 +0100 Message-ID: <1441208719-31336-1-git-send-email-ian.jackson@eu.citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1ZXAJW-00026Q-M9 for xen-devel@lists.xenproject.org; Wed, 02 Sep 2015 15:51:06 +0000 List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xenproject.org Cc: Ian Campbell List-Id: xen-devel@lists.xenproject.org This series addresses a performance problem which we seem to be experiencing with the existing osstest resource planner in Xen Project test colo. The current setup it can leave hosts idle for too long before getting around to allocating them to test jobs. The full explanation of the new algorithm is in the commit message for 13/13. I have not executed this series yet. Testing it is not all that easy because this code operates only in infrastructure mode, and most of the code is in the central queue daemon and not subject to the osstest self-push-gate. I intend, after a first round of review, to test this fully on the Citrix Cambridge osstest instance.