Thank you for your reply. According to what you said, I set open files to 1024 and solved the problem. Thanks!
------- Sorry for not mentioning the version information. The version of libvirt is 4.5.0. Regards, John Daniel P. Berrangé <berra...@redhat.com> 于2019年11月4日周一 下午6:04写道： > On Mon, Nov 04, 2019 at 04:55:07PM +0800, John Y. wrote: > > 1. It takes minutes to start the virtual machine when I add "filterref" > to > > libvirt.xml and run command "virsh start vm1". > > It also takes minutes to destroy the virtual machine. > > You don't mention which version of libvirt you have... > > My guess is that your docker container has set an enourmous ulimit > for max files. On a normal host it is 1024, but on docker I've seen > it default to 1 million. > > This impacts libvirt when it spawns processes, which is common with > nwfilter in particular, because we must close all open file handles. > In v5.6.0 we added code to let libvirt use /proc/$PID/fd to close > file handles, which is massively faster when ulimits are high. > > > Regards, > Daniel > -- > |: https://berrange.com -o- > https://www.flickr.com/photos/dberrange :| > |: https://libvirt.org -o- > https://fstop138.berrange.com :| > |: https://entangle-photo.org -o- > https://www.instagram.com/dberrange :| > >
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