Pavel, it’s impossible to analyze it just by `du` and `df` output, so please give me access if you want me to take a look into it. (e.g. if I would create 10 million of 1KB files du would show me 10GB while ext4 (and most other file systems) would allocate 40GB in reality assuming 4KB block size)
Thanks, Kirill > On 10 Jan 2015, at 00:54, Pavel Odintsov <pavel.odint...@gmail.com> wrote: > > Thank you, Kirill! I am grateful for your answer! > > I reproduced this issue specially for you on one container with 2.4 > times (240% vs 20%) overuse. > > I do my tests with current vzctl and ploop 1.12.2 (with fixed > http://bugzilla.openvz.org/show_bug.cgi?id=3156). > > Please check this gist: > https://gist.github.com/pavel-odintsov/b2162c0f7588bb8e5c15 > > I can't describe this behavior without complying on ext4 data.... But > I I will be very happy if you fix it :) > > On Sat, Jan 10, 2015 at 12:29 AM, Kirill Korotaev <d...@parallels.com> wrote: >> >>> On 09 Jan 2015, at 21:39, Pavel Odintsov <pavel.odint...@gmail.com> wrote: >>> >>> Hello, everybody! >>> >>> Do somebody have any news about ZFS and OpenVZ experience? >>> >>> Why not? >>> >>> Did you checked my comparison table for simfs vs ploop vs ZFS volumes? >>> You should do it ASAP: >>> https://github.com/pavel-odintsov/OpenVZ_ZFS/blob/master/openvz_storage_backends.md >>> >>> Still not interesting? >>> >>> For example if you have 5Tb disk array (used up to 90%) and using >>> ploop now you lose about 800GB of disk space! >> >> Well, AFAIR we simply have a threshold that ploop is not compacted until >> it’s size is 20% bigger then it should be… >> Also you can try smaller ploop block size. Anyway, my point is that it has >> nothing to do with ext4 metadata as stated in your table. >> >> >>> This data is from real HWN with few hundreds of containers. >>> >>> I have excellent experience and very good news about ZFS! ZFS on Linux >>> team will add very important feature, linux quota inside container >>> (more details here https://github.com/zfsonlinux/zfs/pull/2577 >>> >>> But still no news about ZFS from OpenVZ team (and even from Virtuozza >>> Core) and we can work separately :) >>> >>> Fortunately, we do not need any support from vzctl and can use "raw >>> vzctl" with some lightweight manuals from my repo: >>> https://github.com/pavel-odintsov/OpenVZ_ZFS/blob/master/OpenVZ_containers_on_zfs_filesystem.md >>> >>> I collected all useful information here >>> https://github.com/pavel-odintsov/OpenVZ_ZFS >>> >>> Stay tuned! Join to us! >>> >>> -- >>> Sincerely yours, Pavel Odintsov >>> _______________________________________________ >>> Users mailing list >>> Users@openvz.org >>> https://lists.openvz.org/mailman/listinfo/users >> >> >> _______________________________________________ >> Users mailing list >> Users@openvz.org >> https://lists.openvz.org/mailman/listinfo/users > > > > -- > Sincerely yours, Pavel Odintsov > > _______________________________________________ > Users mailing list > Users@openvz.org > https://lists.openvz.org/mailman/listinfo/users _______________________________________________ Users mailing list Users@openvz.org https://lists.openvz.org/mailman/listinfo/users
