[Gluster-users] Concerned about glusterfs performance

Oliver Hoffmann oh at dom.de
Thu Mar 25 15:55:13 UTC 2010


Hi,

I switched eth1 and eth0. Now the internal communication has 1Gbit. I
ran the test again and now it took 3:30 instead of 8:something. Quite
better but still not good though.
Next I'll put the whole setup on recent HW.

Oliver

> Hi all,
> 
> I read the posting from Jeremy and did some tar tests myself. The 
> hardware of my test servers is rather old. Two Dell 2550 which have
> an internal network via crosslink (100Mbit) for the glusterfs 
> communication. I'll change to the other NIC (1Gbit) and run the test 
> again tomorrow.
> The results were pretty disappointing. I tar-ed the kernel sources
> which is around 80 MB. The resulting tar file had 11 MB. Unpacking
> this on ext4 lasted a few seconds while on my glusterfs-Raid 1 it
> took more than 8 minutes! Then I took the config of Jeremy and got
> around 5 minutes for unpacking it.
> Even if I have new and fast servers with 1Gbit or better 10Gbit
> ethernet for glusterfs I fear that the performance is still too poor.
> At least if it comes to reading/writing lots of tiny files from lots
> of clients. Mail- or db-servers come to mind.
> What do you think?
> 
> Regards,
> 
> Oliver
> 
> 
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