Re: [libvirt] Slow libvirtd startup

On 10.01.2013 14:53, Zeeshan Ali (Khattak) wrote: > On Thu, Jan 10, 2013 at 12:06 PM, Michal Privoznik <mprivozn(a)redhat.com&gt; wrote: >> On 09.01.2013 22:38, Zeeshan Ali (Khattak) wrote: >>> Hi, >>> Too lazy to explain again so I'll just c&p conversation I had about >>> the issue with Eric on IRC: >>> >>> <zeenix> is timeouts on session libvirt (or in general) something new? >>> <zeenix> libvirtd startup seems to now take a few seconds so Boxes UI >>> is all empty for that amount of time >>> <eblake> it's been around for a while; qemu.conf has settings to >>> control how long it should take >>> <zeenix> unless Boxes is launched before libvirtd timesout >>> <eblake> but there is a relatively new patch that makes the libvirtd >>> -t actually be useful for qemu:///session >>> <zeenix> don't think i ever changed that, at least not recently >>> <zeenix> that could be it >>> <zeenix> i only saw it happening after i update libvirtd (after a month) >>> <eblake> if you're seeing some delays in starting libvirtd, those are >>> probably worth fixing >>> <zeenix> s/update/recently updated/ >>> <zeenix> yeah >>> <zeenix> i'll try to write a test app >>> <zeenix> no need, i can reproduce with virsh :) >>> >>> [zeenix@z-laptop virt]$ time virsh list >>> Id Name State >>> ---------------------------------------------------- >>> >>> >>> real 0m6.349s >>> user 0m0.016s >>> sys 0m0.010s >>> [zeenix@z-laptop virt]$ time virsh list >>> Id Name State >>> ---------------------------------------------------- >>> >>> >>> real 0m0.024s >>> user 0m0.010s >>> sys 0m0.011s >>> >>> >> >> You can try turning debug logs on and hopefully it will let more light >> in. To turn them on: >> >> $ cat ~/.config/libvirt/libvirtd.conf >> log_level=1 >> log_outputs="1:file:/tmp/libvirtd.log" >> >> Moreover, if you could upload them somewhere then so we all can take a look. > > Here you go :) > > http://static.fi/~zeenix/tmp/libvirtd-session-zeenix.log > Yeah, Daniel was right; It's because we are querying capabilities: http://pastebin.com/FA6HWYrS You have too much qemus there :) Libvirt spent ~7 seconds there.