Ugh, small sequential *reads* I meant to say. :)
Mark
On 07/11/2017 06:31 AM, Mark Nelson wrote:
Hi Junqin,
Can you tell us your hardware configuration (models and quantities of
cpus, network cards, disks, ssds, etc) and the command and options you
used to measure performance?
In many cases bluestore is faster than filestore, but there are a couple
of cases where it is notably slower, the big one being when doing small
sequential writes without client-side readahead.
Mark
On 07/11/2017 05:34 AM, Junqin JQ7 Zhang wrote:
Hi,
I installed Ceph luminous v12.1.0 in 3 nodes cluster with BlueStore
and did some fio test.
During test, I found the each OSD CPU utilization rate was only aroud
30%.
And the performance seems not good to me.
Is there any configuration to help increase OSD CPU utilization to
improve performance?
Change kernel.pid_max? Any BlueStore specific configuration?
Thanks a lot!
B.R.
Junqin Zhang
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