Re: [ceph-users] saving file on cephFS mount using vi takes pause/time
Yes via creates a swap file and nano doesn’t. But when I try fio to write, I don’t see this happening. -- Deepak From: Chris Sarginson [mailto:csarg...@gmail.com] Sent: Thursday, April 13, 2017 2:26 PM To: Deepak Naidu; ceph-users Subject: Re: [ceph-users] saving file on cephFS mount using vi takes pause/time Is it related to this the recovery behaviour of vim creating a swap file, which I think nano does not do? http://vimdoc.sourceforge.net/htmldoc/recover.html A sync into cephfs I think needs the write to get confirmed all the way down from the osds performing the write before it returns the confirmation to the client calling the sync, though I stand to be corrected on that. On Thu, 13 Apr 2017 at 22:04 Deepak Naidu mailto:dna...@nvidia.com>> wrote: Ok, I tried strace to check why vi slows or pauses. It seems to slow on fsync(3) I didn’t see the issue with nano editor. -- Deepak From: Deepak Naidu Sent: Wednesday, April 12, 2017 2:18 PM To: 'ceph-users' Subject: saving file on cephFS mount using vi takes pause/time Folks, This is bit weird issue. I am using the cephFS volume to read write files etc its quick less than seconds. But when editing a the file on cephFS volume using vi , when saving the file the save takes couple of seconds something like sync(flush). The same doesn’t happen on local filesystem. Any pointers is appreciated. -- Deepak This email message is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. ___ ceph-users mailing list ceph-users@lists.ceph.com<mailto:ceph-users@lists.ceph.com> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com ___ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
Re: [ceph-users] saving file on cephFS mount using vi takes pause/time
Is it related to this the recovery behaviour of vim creating a swap file, which I think nano does not do? http://vimdoc.sourceforge.net/htmldoc/recover.html A sync into cephfs I think needs the write to get confirmed all the way down from the osds performing the write before it returns the confirmation to the client calling the sync, though I stand to be corrected on that. On Thu, 13 Apr 2017 at 22:04 Deepak Naidu wrote: > Ok, I tried strace to check why vi slows or pauses. It seems to slow on > *fsync(3)* > > > > I didn’t see the issue with nano editor. > > > > -- > > Deepak > > > > > > *From:* Deepak Naidu > *Sent:* Wednesday, April 12, 2017 2:18 PM > *To:* 'ceph-users' > *Subject:* saving file on cephFS mount using vi takes pause/time > > > > Folks, > > > > This is bit weird issue. I am using the cephFS volume to read write files > etc its quick less than seconds. But when editing a the file on cephFS > volume using vi , when saving the file the save takes couple of seconds > something like sync(flush). The same doesn’t happen on local filesystem. > > > > Any pointers is appreciated. > > > > -- > > Deepak > -- > This email message is for the sole use of the intended recipient(s) and > may contain confidential information. Any unauthorized review, use, > disclosure or distribution is prohibited. If you are not the intended > recipient, please contact the sender by reply email and destroy all copies > of the original message. > -- > ___ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > ___ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
Re: [ceph-users] saving file on cephFS mount using vi takes pause/time
Ok, I tried strace to check why vi slows or pauses. It seems to slow on fsync(3) I didn't see the issue with nano editor. -- Deepak From: Deepak Naidu Sent: Wednesday, April 12, 2017 2:18 PM To: 'ceph-users' Subject: saving file on cephFS mount using vi takes pause/time Folks, This is bit weird issue. I am using the cephFS volume to read write files etc its quick less than seconds. But when editing a the file on cephFS volume using vi , when saving the file the save takes couple of seconds something like sync(flush). The same doesn't happen on local filesystem. Any pointers is appreciated. -- Deepak --- This email message is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. --- ___ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com