On 3/27/2023 12:19 PM, Boris Behrens wrote:
Nonetheless the IOPS the bench command generates are still VERY low compared to the nautilus cluster (~150 vs ~250). But this is something I would pin to this bug:https://tracker.ceph.com/issues/58530
I've just run "ceph tell bench" against main, octopus and nautilus branches (fresh osd deployed with vstart.sh) - I don't see any difference between releases - sata drive shows around 110 IOPs in my case.. So I suspect some difference between clusters in your case. E.g. are you sure disk caching is off for both?
@Igor do you want to me to update the ticket with my findings and the logs from pastebin? Feel free to update if you like but IMO we still lack the understanding what was the trigger for perf improvements in you case - OSD redeployment, disk trimming or both? -- Igor Fedotov Ceph Lead Developer -- croit GmbH, Freseniusstr. 31h, 81247 Munich CEO: Martin Verges - VAT-ID: DE310638492 Com. register: Amtsgericht Munich HRB 231263 Web <https://croit.io/> | LinkedIn <http://linkedin.com/company/croit> | Youtube <https://www.youtube.com/channel/UCIJJSKVdcSLGLBtwSFx_epw> | Twitter <https://twitter.com/croit_io>
Meet us at the SC22 Conference! Learn more <https://croit.io/croit-sc22> Technology Fast50 Award Winner by Deloitte <https://www2.deloitte.com/de/de/pages/technology-media-and-telecommunications/articles/fast-50-2022-germany-winners.html>! <https://www2.deloitte.com/de/de/pages/technology-media-and-telecommunications/articles/fast-50-2022-germany-winners.html>