Am 09.11.2012 15:43, schrieb Alexandre DERUMIER:
To me yes. With 3 Nodes i had a max of 10.000 iops.
Ah, great to known !
so around 3000 iops by node, I hope It'll improve in time.
Yes at least it scales. Sadly only 3000 iops... but each node has a
capacity of 360.000 iops... perhaps a bit overkill... but SSDs are near
cheap as SAS drives...
Did you have tested with gigabit link with bigger latencies ?
No. But i hope i can compare Arista 10G against HP 10G soon.
Stefan
----- Mail original -----
De: "Stefan Priebe - Profihost AG" <[email protected]>
À: "Alexandre DERUMIER" <[email protected]>
Cc: [email protected], "Dietmar Maurer" <[email protected]>
Envoyé: Vendredi 9 Novembre 2012 15:28:12
Objet: Re: [pve-devel] less cores more iops / speed
Am 09.11.2012 11:31, schrieb Alexandre DERUMIER:
Yes. CPU Load in Ceph for rand. 4k writes can be dropped by 50% when
disabling all debug setting (see my last post on ceph mailinglist).
I just see it, great,I'll test it on my side :)
(how many ssds - nodes ?) I hope that Intank is working on random io
performance.
I have 5 nodes with 4 SSDs each.
I don't understand why we can't get more iops, if they are no cpu or disks
bottleneck... (or they are locks somewhere ....)
I really would like to known if iops scale with the number of nodes...
To me yes. With 3 Nodes i had a max of 10.000 iops.
Stefan
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