Re: [Dump-users] Slow dump

[Stelian P. <st...@po...>]

On Thu, Dec 09, 2004 at 05:41:42AM -0800, Kenneth Porter wrote:

> --On Thursday, December 09, 2004 1:58 PM +0100 Stelian Pop 
> <st...@po...> wrote:
> 
> >What does dd with bs=1M say ?
> 
> [root@newred tmp]# time dd 
> if=/home/ken/tmp/DesertCombat_0.7_Full_Install.exe of=/mnt/Backup/test bs=1M
> 591+1 records in
> 591+1 records out
> 
> real    0m59.047s
> user    0m0.013s
> sys     0m15.831s
> 
> Looks about the same. Maybe a wee bit faster.

Ok. 

What if you run the dump redirecting the output to a local file ?
(this should tell if the slowdown is network related at all)

What if you run the dump without QFA ?
(QFA seems to induce slowdowns for at least another user recently)

What if you run the dump without bzip2 -9 compression ?
(if your server is not really very fast, the bottleneck may be
CPU not network related)

Stelian.
-- 
Stelian Pop <st...@po...>