Re: Wide variation in osd_mclock_max_capacity_iops_hdd

[Vladimir Brik <vladimir.brik@xxxxxxxxxxxxxxxx>]

$ ceph tell osd.0 cache drop
$ ceph tell osd.0 bench 12288000 4096 4194304 100
{
    "bytes_written": 12288000,
    "blocksize": 4096,
    "elapsed_sec": 2.0322708330000001,
    "bytes_per_sec": 6046438.201280823,
    "iops": 1476.1812014845759
}

ceph version 17.2.1


Thank you

Vlad

On 9/7/22 09:37, Sridhar Seshasayee wrote:
>     I repeated cache drop/bench a few times and the results are
>     consistent but high: 1500-1600 IOPS
>
> Couple of asks:
>
> - Could you please paste the output of the bench command. I 
> wanted to
> check how long the test took.
> - The Ceph version running on your cluster.
>
> Thanks!
> -Sridhar
>
> <https://www.redhat.com>
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