On Thu, Jun 4, 2015 at 6:03 AM, Sarah Newman <srn at prgmr.com> wrote: > By default, /var/lib/xenstored is mounted tmpfs in centos 5 but this doesn't appear to be true for Xen4CentOS. This can cause performance issues as > mentioned in https://bugzilla.redhat.com/show_bug.cgi?id=446089 > > I'm not sure if this should be part of xencommons, but if not, adding a tmpfs mount should probably be documented on the quick start wiki page. Sarah, Thanks for looking into this. Adding a tmpfs mount to xencommons, if using the C xenstored, might be a good idea -- I'll float that with upstream and see what they say. As an alternate, can you try using the ocaml-based oxenstored (which doesn't use the filesystem as its atomicity mechanism)? To use oxenstored: * Install the xen-ocaml package * Reboot dom0 * Verify that oxenstored is running: # ps ax | grep xenstore 654 ? S 0:00 /usr/sbin/oxenstored --pid-file /var/run/xenstored.pid (On my to-do list is to get oxenstored into the core xen-runtime package, which would also resolve this situation, I believe.) Thanks, -George