Re: gluster write performance

[Roman <romeo.r@xxxxxxxxx>]

But when I'm inside of VM, I'm getting 50-53 MB/s for replica and 120 MB for distributed volumes...

whats the logic? that slow write speed directly to mounted gfs volume slows down backup and restore process of VMs by VE.

2015-07-18 22:47 GMT+03:00 Roman <romeo.r@xxxxxxxxx>:

Hi,

Looked a lot from forums, but didn't find much..

So I've got glusterfs 3.6.4

1 Gbps network

replicate and distributed volumes

so when i read from any of them, I get maxed-out network performance (around 80-120 MB/sec)

If i write to distributed volume, I get 16 MB/sec

If i write to replicated volume, I get around half of it (which is logical) 8-10MB/sec

i use XFS (with all set recommended options) and EXT4 for gluster. no difference.

Disks are in HW RAID5 for Distributed volume and RAID0 for Replicated volume

volume options:

performance.write-behind: off

server.allow-insecure: on

cluster.server-quorum-type: server

cluster.quorum-type: auto

network.remote-dio: enable

cluster.eager-lock: enable

performance.stat-prefetch: off

performance.io-cache: off

performance.read-ahead: off

performance.quick-read: off

Am I missing something?

--

Best regards,
Roman.

--

Best regards,
Roman.

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