Am 02.05.25 um 13:52 schrieb Markus Frank: > On 2025-04-28 12:17, Fiona Ebner wrote: >> As reported in the community forum [0] and the virtio-win project [1], >> virtiofsd will run into its open file limit when used with a Windows >> guest that reads too many files. It's also reported that the issue >> does not occur with Linux guests and a workaround is using >> '--inode-file-handles=mandatory' on virtiofsd command line. > I was able to reproduce the issue with a directory containing a million > files. > The virtiofs share became unusable when I tried to list the files with > 'ls'. > This patch allows to list all the files without problems. >> >> The option is described as follows in the vritiofsd help: > typo: virtiofsd
Will fix! >> >>> When to use file handles to reference inodes instead of O_PATH file >>> descriptors (never, prefer, mandatory) >> >> and the default is 'never'. >> >> Fix the above issue by using 'prefer' rather than 'mandatory', because >> that should not break other edge cases: >> >>> prefer: Attempt to generate file handles, but fall back to O_PATH >>> file descriptors where the underlying filesystem does not support >>> file handles. Useful when there are various different filesystems >>> under the shared directory and some of them do not support file >>> handles. >> >> [0]: https://forum.proxmox.com/threads/165565/ >> [1]: https://github.com/virtio-win/kvm-guest-drivers-windows/issues/1136 >> >> Signed-off-by: Fiona Ebner <f.eb...@proxmox.com> > Tested-by: Markus Frank <m.fr...@proxmox.com> >> --- >> >> Didn't get around to measure the performance impact yet, so feel free >> to check that if you test this patch. While not being broken is more >> important than good performance, it would still be good to know for >> completeness. > I made a few read/write tests with fio in a Windows 11 guest. Since the option affects file handles, it would be more interesting to test something that involves handling many files rather than just IO. _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
