[OpenAFS-devel] Vos dump "performance"

[Robert Milkowski]

Identify thread in volserver which is executing the dump and strace/truss it
to see what's going on.
It is probably a good starting point.

Also you're not specifying -server localhost so you might not necessarily be
talking to the local server.

Best regards,
 Robert Milkowski
 http://milek.blogspot.com


> -----Original Message-----
> From: openafs-devel-admin@openafs.org [mailto:openafs-devel-
> admin@openafs.org] On Behalf Of Harald Barth
> Sent: 12 May 2015 13:43
> To: openafs-devel@openafs.org
> Subject: [OpenAFS-devel] Vos dump "performance"
> 
> 
> I have some serious case of "vos dump slowness" here (on localhost)
> 
> gourami# date ; vos dump -id 537086828 -time 0 -localauth > /dev/null ;
> date Tue May 12 11:40:00 CEST 2015 Dumped volume 537086828 in stdout
> Tue May 12 14:04:00 CEST 2015
> 
> I can compare to "tar" over the same data:
> 
> gourami# cd /vicepa/AFSIDat/e=/eho+U
> gourami# date ; tar cf /dev/null . ; date Tue May 12 11:18:06 CEST 2015
> Tue May 12 11:22:36 CEST 2015
> 
> Ok, vos dump is doing a little more than tar, but has anyone any idea
> in what corner to dig after this? Probably it has to do with that the
> volume has many files (in relative few directories).
> 
> $ vos exa 537086828 -c pdc.kth.se -ext
> common.var.easy.a-pop.backup      537086828 BK    5084378 K used
> 2367409 files On-line
> 
> Harald.
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