[Gluster-devel] Major slowdown in cp performance in 1.4 branch

[Brent A Nelson]

3.2 MBps, which is far less than previous, on a "dd if=/dev/zero 
of=/beast/blah0 bs=1M count=10000"

Thanks,

Brent

On Mon, 25 Aug 2008, Amar S. Tumballi wrote:

> Brent,
> Can you check the dd speed too? One user on irc reported very slow cp
> performance too, but his dd performance was good.
>
> Regards,
>
> 2008/8/25 Brent A Nelson <brent at phys.ufl.edu>
>
>> A checkout today from the 1.4 branch seems to give terrible performance on
>> "cp -a".  Something that took a little over 9 minutes from a checkout last
>> week now takes over an hour (it hasn't finished yet).  CPU time consumed by
>> glusterfs and all the glusterfsd processes is quite a bit smaller than it
>> used to be; it looks like a recent patch is causing a substantial
>> performance issue...
>>
>> Thanks,
>>
>> Brent
>>
>>
>> _______________________________________________
>> Gluster-devel mailing list
>> Gluster-devel at nongnu.org
>> http://lists.nongnu.org/mailman/listinfo/gluster-devel
>>
>
>
>
> -- 
> Amar Tumballi
> Gluster/GlusterFS Hacker
> [bulde on #gluster/irc.gnu.org]
> http://www.zresearch.com - Commoditizing Super Storage!
>