On Wed, Jun 11, 2008 at 12:31 PM, henry ritzlmayr <centos at rc0.at> wrote: > Am Mittwoch, den 11.06.2008, 10:06 -0700 schrieb MHR: > > On Wed, Jun 11, 2008 at 8:36 AM, Ruslan Sivak <russ at vshift.com> wrote: > > > > > > I guess it has something to do with the ballooning driver for Dom0. It > > > looks like I just tried to allocation too much memory to DomU and the > box > > > went down hard. I think there's a setting in xen to the min amount of > > > memory to go down to, but I'm not sure why Dom0 is using 600mb of RAM. > Is > > > there a mini installation of CentOS that I can do that would use less > RAM? > > > I've already unchecked all the boxes when installing CentOS. I would > like > > > Dom0 to be as small as possible, both due to RAM usage and from a > security > > > perspective. > > > > I've not familiarized myself with xen yet, but have you considered > > VMware Server? I haven't had any serious problems with it, and none > > at all since v1.0.5 came out (1.0.6 is the current one). Works > > nicely, stays within its memory allocation, and top et al work as > > you'd expect them to. > > > > HTH > > > > mhr > > I evaluated VMware Server myself (v1.0.3) and at that time, Disk I/O was > pretty bad within a virtual machine. The only solution I found was XEN > with paravirtualization. Has there been any progress on that with later > releases? > > For example: > > dd if=/dev/md5 of=/dev/null bs=1M count=1000 on bare metal gave 272 MB/s > same within VMware gave only 47,9 MB/s > > I know that dd is not a benchmark - but for measuring sequential reads > within a system its fair enough for me. > > Henry > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > Does anyone has tested Openvz? I see many hosting providers using Openvz with CentOS, but haven't had the time to tried out yet, I know it's not paravirtualization but maybe someone has been able to use it sucessfully? I have the same issue with RHEL 5.2, just showing 4Gigs of my 6Gigs box. Cheers, -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20080611/bfdee549/attachment-0005.html>