Re: [Buildroot] [PATCH 1/1] support/testing/infra/emulator.py: add host load info in run log

[Thomas Petazzoni via buildroot <buildroot@buildroot.org>]

On Sun, 28 Jul 2024 17:46:17 +0200
Julien Olivain <ju.o@free.fr> wrote:

> Runtime tests running on test runners are subject to a high
> variability in term of performance and timing. Most or the runtime
> test commands are executed with a timeout, in pexpect.
> 
> Slow or very loaded test runners can use the timeout_multiplier to
> globally increase those timeouts.
> 
> Some runtime test commands sometimes needs to poll or query a state,
> rather than having purely sequential actions. It is sometimes hard to
> know, from the test writer point of view, the maximum timeout to set, or
> if a retry logic is needed.
> 
> In order to help debugging runtime tests failing due very slow
> execution, this commit adds extra information on the host test runner
> about its load in the run log. Relevant information are: number of
> cpus, the load average at the moment the emulator is started and the
> current timeout_multiplier.
> 
> Note: this change was discussed in:
> https://lists.buildroot.org/pipermail/buildroot/2024-July/759119.html
> 
> Signed-off-by: Julien Olivain <ju.o@free.fr>
> ---
>  support/testing/infra/emulator.py | 7 +++++++
>  1 file changed, 7 insertions(+)

Applied to master, thanks.

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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