Re: [GIT PULL] perf tools changes for v5.19: 2nd batch
From: Linus Torvalds
Date: Sun May 29 2022 - 13:36:19 EST
On Sun, May 29, 2022 at 8:45 AM Arnaldo Carvalho de Melo
<acme@xxxxxxxxxx> wrote:
>
> - Add BPF based off-CPU profiling.
I suspect this could have come with a bit more explanation of what
"off-CPU profiling" means.
It seems to be "account time when process was scheduled away to
caller", but I had to go look at the commits to figure that out.
Partly unrelated side note: I've occasionally looked for "useful perf
recipes". Not from kernel developers, but from people who solved real
performance problems using perf, giving useful examples.
Linus