[pve-devel] pve-manager and disk IO monitoring

Dietmar Maurer dietmar at proxmox.com
Fri Sep 30 07:38:43 CEST 2016



> On September 30, 2016 at 7:03 AM Alexandre DERUMIER <aderumier at odiso.com>
> wrote:
> 
> 
> "Running a fio test also only shows marginal performance difference
> between scsi-block and scsi-generic"
> 
> I think that 11% difference is not so marginal.

Where do you see that 11% difference?

-device scsi-block

   READ: io=2454.9MB, aggrb=87501KB/s, minb=87501KB/s, maxb=87501KB/s,
mint=28728msec, maxt=28728msec
  WRITE: io=631997KB, aggrb=21999KB/s, minb=21999KB/s, maxb=21999KB/s,
mint=28728msec, maxt=28728msec

-device scsi-generic
  READ: io=2454.9MB, aggrb=88384KB/s, minb=88384KB/s, maxb=88384KB/s,
mint=28441msec, maxt=28441msec
 WRITE: io=631997KB, aggrb=22221KB/s, minb=22221KB/s, maxb=22221KB/s,
mint=28441msec, maxt=28441msec



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