Hi,
My environment has 32 core CPU, and 256GB memory. The SSD can get
30k write IOPS when use directIO.
Finally, i figure out the problem, after change the scheduler of SSD to
noop, the
performance improve obviously.
Please forgive me, i don't realize IO scheduler could impact performance so
much
Hello,
Firstly, this is clearly a ceph-users question, don't cross post to
ceph-devel.
On Thu, 15 Oct 2015 09:29:03 +0800 hzwuli...@gmail.com wrote:
> Hi,
>
> It should be sure SSD Journal will improve the performance of IOPS. But
> unfortunately it's not in my test.
>
> I have two pools wit
Hi,
It should be sure SSD Journal will improve the performance of IOPS. But
unfortunately it's not in my test.
I have two pools with the same number of osds:
pool1, ssdj_sas:
9 osd servers, 8 OSDs(SAS) on every server
Journal on SSD, one SSD disk for 4 SAS disks.
pool 2, sas:
9 osd servers, 8
