[pve-devel] [PATCH manager] ceph osd: ui: show PGs per OSD

Aaron Lauterer a.lauterer at proxmox.com
Tue Feb 14 16:05:18 CET 2023

I compared the returned values, but did not benchmark it.

I'll follow up with the results.

On 2/14/23 14:19, Thomas Lamprecht wrote:
> On 14/02/2023 09:13, Aaron Lauterer wrote:
>> By switching from 'ceph osd tree' to the 'ceph osd df tree' mon API
>> equivalent , we get the same data structure with more information per
> the change looks almost too neat for using a completely different command,
> a bit fishy, but hey, if it works (roughly as fast) as the other one its
> fine to me.
>> OSD. One of them is the number of PGs stored on that OSD.
> did you benchmark the both to compare for any bigger runtime difference?
> E.g., some loop with a few thousands rados mon_command calls in perl for each
> using HiRes timer to measure total loop time and compare?
> I'd not care for a few percent, but would be good to know if this is
> order of magnitudes slower - which I'd not expect, but its to easy to
> check to not do so IMO.

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