xfs_repair 2.9.4 threading/progress info missing?

xfs_repair 2.9.4 threading/progress info missing?

[James Braid]

I just upgraded to xfsprogs 2.9.4 and it seems the multi-threading and
progress information is no longer being reported?

2.8.18:
        - creating 8 worker thread(s)
Phase 1 - find and verify superblock...
        - reporting progress in intervals of 15 minutes
Phase 2 - using internal log
        - zero log...
        - scan filesystem freespace and inode maps...

2.9.4:
Phase 1 - find and verify superblock...
Phase 2 - using internal log
        - zero log...
        - scan filesystem freespace and inode maps...
        - found root inode chunk

Have I just mis-compiled something? The progress information in particular
was REALLY useful on our bigger filesystems.

Re: xfs_repair 2.9.4 threading/progress info missing?

[Barry Naujok]

On Thu, 08 Nov 2007 22:27:09 +1100, James Braid <jamesb@loreland.org>  
wrote:

>
> I just upgraded to xfsprogs 2.9.4 and it seems the multi-threading and
> progress information is no longer being reported?
>
> 2.8.18:
>         - creating 8 worker thread(s)
> Phase 1 - find and verify superblock...
>         - reporting progress in intervals of 15 minutes
> Phase 2 - using internal log
>         - zero log...
>         - scan filesystem freespace and inode maps...
>
> 2.9.4:
> Phase 1 - find and verify superblock...
> Phase 2 - using internal log
>         - zero log...
>         - scan filesystem freespace and inode maps...
>         - found root inode chunk
>
> Have I just mis-compiled something? The progress information in  
> particular
> was REALLY useful on our bigger filesystems.

Hi,

It is sort of still there. With the performance improvements
in 2.9.4, the multithreading implementation was changed and
hidden from the user. A side effect of this change was the
progress info is now only visible when using the ag_stride
option. Depending on your drive layout, ag_stride may speed
up repair even further, especially concats. With other layouts,
try "-o ag_stride=1". I found on one of our RAIDs, that
actually doubled doubled the repair performance on a 5 way
stripe.

Progress info for normal runs will be reintroduced in the
near future and other output will be cleaned up a tad.

Regards,
Barry.