[Gluster-users] Strange performance issues on Debian/Lenny compared to Ubuntu

[Vikas Gorur]

On Mar 26, 2010, at 4:48 AM, Olivier Le Cam wrote:

> Ooops, I have cc the wrong command on the Ubuntu server. Please correct:
> 
> > ubuntu:# dd if=/gl_nunki/file_test of=/dev/null
> > 524288+0 records in
> > 524288+0 records out
> > 268435456 bytes (268 MB) copied, 3,15924 s, 85,0 MB/s
> 
> with:
> 
> # dd if=/dev/zero of=/mnt/file_test count=262144 bs=1024
> 262144+0 records in
> 262144+0 records out
> 268435456 bytes (268 MB) copied, 5,56942 s, 48,2 MB/s


Please try both these commands with the same block size. Also, be aware
that GlusterFS performance goes down as the block size decreases.

------------------------------
Vikas Gorur
Engineer - Gluster, Inc.
+1 (408) 770 1894
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