[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Strange latency hvm domU boot xen 4.0.1-rc2-pre and 2.6.32.15 pv_ops
Config is based on config of debian kernel: http://old.nabble.com/file/p28804864/config-2.6.32.15 myconfig Pasi KÃrkkÃinen wrote: > > i no add other debug option, i must remove some option in this? > and the grub entry: > title Xen 4 / Debian GNU/Linux, kernel 2.6.32.15 > root (hd0,0) > kernel /boot/xen.gz dom0_mem=1536M > module /boot/vmlinuz-2.6.32.15 root=LABEL=root-raid ro > nomodeset > module /boot/initrd.img-2.6.32.15 > On Fri, Jun 04, 2010 at 02:27:55PM -0700, Fantu wrote: >> >> 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 >> > > Have you checked your dom0 kernel .config for various DEBUG options? > > Some people reported performance problems earlier and it turned out they > had some (extra) debugging options turned on.. > > Worth checking. > > -- Pasi > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel > > -- 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-tp28785415p28804864.html Sent from the Xen - Dev mailing list archive at Nabble.com. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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