[PVE-User] RAID array performance measuring

[Frederic Van Espen]

On 08/28/2013 12:43 PM, Frederic Van Espen wrote:
> On 08/28/2013 11:43 AM, Martin Maurer wrote:
>> [Martin Maurer]
>> Looks like you run an old kernel.
>>
>> Our current accraid driver in Proxmox VE 3.x is 1.2-1[30200].
>> (But this seem not related to your issue)
>
> I'm not so sure it is not related.

For the sake of completeness:

on pve-kernel-2.6.32-19-pve: 2.6.32-96

root at vm006:~# pveperf
CPU BOGOMIPS:      19199.16
REGEX/SECOND:      937362
HD SIZE:           4.58 GB (/dev/mapper/vm006-ROOT)
BUFFERED READS:    422.96 MB/sec
AVERAGE SEEK TIME: 3.20 ms
FSYNCS/SECOND:     221.53
DNS EXT:           43.49 ms

on pve-kernel-2.6.32-23-pve: 2.6.32-109

root at vm006:~# pveperf
CPU BOGOMIPS:      19200.36
REGEX/SECOND:      965099
HD SIZE:           4.58 GB (/dev/mapper/vm006-ROOT)
BUFFERED READS:    426.39 MB/sec
AVERAGE SEEK TIME: 3.35 ms
FSYNCS/SECOND:     3990.06
DNS EXT:           37.40 ms

This is on a 4 disk RAID5 array. Performance on RAID1 and RAID10 is similar.

So the kernel or drivers are definitely involved here.

Thanks again for the help!

Frederic