fwiw, I did this: sudo btrfs qgroup show /media/X ERROR: can't perform the search - No such file or directory ERROR: can't list qgroups: No such file or directory
I assume this means no qgroups present, which means no quotas present. Please correct me if I'm wrong. So yes, the issue must lie elsewhere. On Mon, Oct 26, 2015 at 2:46 PM, cheater00 . <cheate...@gmail.com> wrote: > I don't remember doing that, but just to exclude everything, how do I check? > > On Mon, Oct 26, 2015 at 2:45 PM, Donald Pearson > <donaldwhpear...@gmail.com> wrote: >> AFAIK quotas aren't a mount option, but if you never enabled them and >> created the qgroups by hand that's your answer and the issue must be >> something else. >> >> On Mon, Oct 26, 2015 at 8:36 AM, cheater00 . <cheate...@gmail.com> wrote: >>> There are no quotas. I haven't enabled them. I believe the fstab says >>> that - could they be enabled in another way? How do I check for sure? >>> The man page doesn't say how to check the status: >>> https://btrfs.wiki.kernel.org/index.php/Manpage/btrfs-quota >>> >>> On Mon, Oct 26, 2015 at 2:32 PM, Donald Pearson >>> <donaldwhpear...@gmail.com> wrote: >>>> Accidentally didn't reply to the list the 1st time. >>>> >>>> I see the same issue when I have quotas enabled. If you have quotas >>>> on, see if turning them off helps. >>>> >>>> On Mon, Oct 26, 2015 at 7:16 AM, cheater00 . <cheate...@gmail.com> wrote: >>>>> Hi guys, >>>>> I am running into really bad performance. Here's my setup: >>>>> >>>>> WD Red 6 TB connected over USB2 to my core i7 laptop, running Ubuntu >>>>> 32-bit with kernel 4.0.4-040004-generic #201505171336. >>>>> >>>>> Single btrfs partition covering whole disk. >>>>> >>>>> Autodefrag is on. >>>>> >>>>> fstab line: >>>>> UUID=... /media/X btrfs rw,nosuid,nodev,autodefrag 0 0 >>>>> >>>>> Sometimes when files are being modified or removed, I see >>>>> btrfs-transacti eat 100% cpu; during this time no io operations >>>>> succeed, that is, they're all stalled. You can't even ls on that fs. >>>>> This happens for several minutes then normal operation resumes. There >>>>> doesn't seem to be a rule to what will trigger this, other than >>>>> opening a single file and reading usually works quite well. (say, >>>>> watching a movie while all other programs are closed). But even moving >>>>> files off the disks triggers some sort of bug. Just now I am moving a >>>>> few files (just 30gb worth) onto another disk, and the bug triggers. >>>>> So btrfs-transacti was eating my cpu for over 5 minutes and according >>>>> to mv's output after this was done and cpu usage went back to normal >>>>> what I was waiting for was for a tiny png file to be removed. This is >>>>> pretty bad. >>>>> >>>>> I have tried defragmenting directories where files are being accessed >>>>> and moved. This hasn't helped. >>>>> >>>>> This happens whether the FS is near full or not. It currently is near >>>>> full but it wasn't before and it still did that. It still has about ~ >>>>> 100GB free space now. >>>>> >>>>> The more things are happening the more often this bug gets triggered. >>>>> So if I have utorrent running and its temporary downloads directory is >>>>> there, its download speed graph will be a few spikes of running at >>>>> several MB/sec separated by durations of 0 download speed. >>>>> >>>>> Nothing seems to show up in dmesg or syslog. >>>>> >>>>> I have asked in #btrfs but the suggestions ended up not fixing the >>>>> issue (autodefrag, defrag dirs). >>>>> >>>>> Please advise what I should do with this issue. >>>>> -- >>>>> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in >>>>> the body of a message to majord...@vger.kernel.org >>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
