On Mon, Jul 18, 2022 at 6:44 AM Petr Lautrbach <plautrba@xxxxxxxxxx> wrote:
>
> Dan Čermák <dan.cermak@xxxxxxxxxxxxxxxxxx> writes:
> >
> > Just out of curiosity, how large is the speedup typically?
> >
>
> It depends on the number of threads your machine has. But you could get some
> data for comparison using `fixfiles -T 1 restore` and `fixfiles -T 0
> restore` on a running system. The following times are reported on my workstation:
>
Has anyone run such a test on a system using
classic ("spinning rust") HDDs? It is sometimes
the case that parallelizing activities that are I/O
intensive can result in excessive seek activity
that can result in rather elongated elapsed times
(much worse than single threaded operation).
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