Am 13.11.2012 09:04, schrieb Josh Durgin:
On 11/12/2012 11:52 PM, Stefan Priebe wrote:
Am 13.11.2012 08:42, schrieb Josh Durgin:
On 11/12/2012 01:57 PM, Stefan Priebe wrote:
Thanks,
this gives another burst for iops. I'm now at 23.000 iops ;-) So for
random 4k iops ceph auth and especially the logging is a lot of
overhead.
How much difference did disabling auth make vs only disabling logging?
disable debug logging: 3000 iops
disable auth logging: 2000 iops
Is anybody in the ceph team also interested in a call graph of kvm when
VM is doing random 4k write io?
I'm interested, although I'm not sure how easy it'll be to find
bottlenecks from it. It's worth a shot.
*arg* kvm process segfaults when i use google perf tools to create /
record one.
Any software suggestion?
Stefan
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