Date: Sun, 4 Sep 2016 13:42:22 +0200 (CEST) From: InterNetX - Juergen Gotteswinter <juergen.gotteswinter@internetx.com> To: Ben RUBSON <ben.rubson@gmail.com>, FreeBSD FS <freebsd-fs@freebsd.org> Subject: Re: [ZFS] refquota is very slow ! Message-ID: <1524067530.1937.a66cb17f-9141-4bef-b758-5bb129d16681.open-xchange@ox.internetx.com> In-Reply-To: <0E828163-AEAB-4C8C-BFCF-93D42B3DB3B6@gmail.com> References: <D559DE69-A535-427C-A401-1458C2AA8C31@gmail.com> <1472914773423.63807@kuleuven.be> <0E828163-AEAB-4C8C-BFCF-93D42B3DB3B6@gmail.com>
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Did you try the same in a single local disk based pool? And pls post output of zfs get all, zdb & zpool get all > Ben RUBSON <ben.rubson@gmail.com> hat am 4. September 2016 um 11:28 > geschrieben: > > > Juergen & Bram, > > Thank you for your feedback. > > I then investigated further and think I found the root cause. > > No issue with refquota in my zroot pool containing (in this example) 300.000 > inodes used. > > However, refquota is terribly slow in my data pool containing around > 12.000.000 inodes used. > > I then created 12.000.000 empty file in my zroot pool, in a test dataset. > I put a refquota on this dataset and created a dd file to fulfil empty space. > And around the limit, it began to stall... > I then created an empty dataset in the same pool, refquota is even slow in > this dataset having no inode used. > The root cause seems then to be the total number of inodes used in the pool... > > Some numbers : > Time to fulfil 512MB with quota : 17s > Time to fulfil 512MB with refquota : 3m35s > > Very strange. > > Do you experience the same thing ? > > Thank you again, > > Ben > > > On 03 Sep 2016, at 16:59, Bram Vandoren <bram.vandoren@kuleuven.be> wrote: > > > > I encountered the same problem over NFS. I didn't manage to reproduce it not > > using NFS. I think the userquota property works without any problem though. > > > > Cheers, > > Bram. > > > On 03 Sep 2016, at 12:26, InterNetX - Juergen Gotteswinter > > <juergen.gotteswinter@internetx.com> wrote: > > > > cant confirm this, works like a charm without difference to normal quota > > setting > > _______________________________________________ > freebsd-fs@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"
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