From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fantu Subject: Strange latency hvm domU boot xen 4.0.1-rc2-pre and 2.6.32.15 pv_ops Date: Fri, 4 Jun 2010 14:27:55 -0700 (PDT) Message-ID: <28785415.post@talk.nabble.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Dom0: pvops 2.6.32.15 (last commit of xen/stable2.6.32.x) xen 4.0 hg-testing (changeset 21188) 13 windows pv guest (all xp pro sp3 with gplpv 0.11.0.213), disk with tap2:aio dom0 RAM fixed to 1GB and balloning off we noticed a very impressive speed starting up the first 6-7 windows domU. after this very high loading speed, starting the remaining domains always lead to an gradual performance loss. activity on phisical disk seems to be less and less) and the remaining domains are loaded at very low speed respect to the former. after a relative long time (2-6 minutes) and some of the latest domains were loaded and started, the remaining 1-2 domains seems to load at normal (high) speed again. is no problem of start specific domU before update kernel and xen to last commit the problem was more save, restore and shutdown of all 13 domU are very fast, problem is only on start...already reapeat all test some times no logs in syslog nor in kernel.log neither in xend.log are printed out, even with maximum level of verbosity. any help appreciated here -- View this message in context: http://old.nabble.com/Strange-latency-hvm-domU-boot-xen-4.0.1-rc2-pre-and-2.6.32.15-pv_ops-tp28785415p28785415.html Sent from the Xen - Dev mailing list archive at Nabble.com.