Re: [ceph-users] saving file on cephFS mount using vi takes pause/time

2017-04-13 Thread Deepak Naidu 
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 
<dna...@nvidia.com<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

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Re: [ceph-users] saving file on cephFS mount using vi takes pause/time

2017-04-13 Thread Chris Sarginson 
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
>
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Re: [ceph-users] saving file on cephFS mount using vi takes pause/time

2017-04-13 Thread Deepak Naidu 
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

---
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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.
---
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