Hi, On Tue, 04 Oct 2022 at 23:49, Ludovic Courtès wrote: > Maybe a good test would be to run a daemon on an “average” HDD with > sync-before-registering = true and to run ‘perf timechart record’ while > it’s fetching a large number of substitutes. That way we’d have > concrete data to talk about. What is ’perf timechart record’? I can take a look if no one beats me. Cheers, simon