Gluster 3.4 Fuse client Performace

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Have you brought this up with Red Hat Support? That  is  what you pay them for.



Jung Young Seok <jung.youngseok at gmail.com> wrote:
>I've wrote below email. However it seems I missed mail key word rule on
>subject.
>So I'm sending it again.
>Please check the below mail and any response will be helpful.
>Thanks,
>2013. 10. 25. ?? 6:01? "Jung Young Seok" <jung.youngseok at gmail.com>??
>??:
>
>
>Dear GlusterFS Engineer,
>
>I have questions that my glusterfs server and fuse client
>perform properly on below specification.
>
>It can write only *65MB*/s through FUSE client to 1 glusterfs server (1
>brick and no replica for 1 volume )
> - NW bandwidth are enough for now. I've check it with iftop
> - However it can write *120MB*/s when I mount nfs on the same volume.
>
>Could anyone check if the glusterfs and fuse client perform properly?
>
>
>Detail explanations are below.
>=======================================================================
>I've set 4 glusterfs servers and 1 fuse client.
>Each spec is as followings.
>
>*Server x 4*
> - CPU : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz (2 cpu * 4 core)
> - Memory : 32GB
> - HDD (3TB 7.2K RPM SATA x 14 )
>   * RAID6(33T)
>   * XFS
> - OS : RHS 2.1
> - 4 Gluster Server will be used 2 replica x 2 distributed as 1 volume
> - NW 1G for replica
> - NW 1G for Storage and management

No need. The fuse client connects to all the servers. Replication happens from the client.

> - Current active profile: rhs-high-throughput
>
>*FUSE Client (gluster 3.4)*
> - CPU : Intel(R) Xeon(R) CPU E5-2640 0 @ 2.50GHz
> - Memory : 32GB
> - OS : CentOS6.4
> - NW 2G for Storage (NIC bonding)
>
>All server will be in 10G network. (for now 1G network)
>
>
>I've tested to check primitive disk performance.
> - on first glusterfs server
>* it can write 870MB/s (dd if=/dev/zero of=./dummy bs=4096 count=10000)
>  * it can read 1GB/s   (cat test_file.23 > /dev/null )
> - on fuse client  (mount volume : 1 brick(1dist, no-replica)
>  * it can write 64.8MB/s
> - on nfs client (mount volume : 1 brick(1dist, no-replica)
>  * it can write 120MB/s (it reached NW bandwith

My usual question here is how does dd represent your expected use case? Are you comparing apples to orchards?

>
>
>I wonder why fuse client much slower than nfs client. (it's no-replica peer)
>Is it normal performance?

I always max out my network connection with the fuse client, so no. It's not normal.




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