Re: crimson-osd vs legacy-osd: should the perf difference be already noticeable?

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On Mon, Jan 13, 2020 at 7:38 PM Radoslaw Zarzynski <rzarzyns@xxxxxxxxxx> wrote:
>   * crimson-osd is single-threaded at the moment. It won't eat more
>   than 1 CPU core. That's by design.

Quick supplement on that: actually there is a way to let single
crimson-osd instance to span multiple CPU cores while preserving
the shared-nothing design. Definitely the doors for it should be
kept open but – as it requires an extension to the RADOS
protocol – it would be preferred to not hurry up. IMHO we should
consider it after the seastore (BTW: persistent object store is
worth ~200 kcycles / op accordingly to Mark's testing).

Regards,
Radek
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