Control: tags -1 + moreinfo
On Tue, Jun 30, 2020 at 08:52:26PM +0100, Christopher Obbard wrote:
> Source: linux
> Severity: wishlist
>
> Dear Maintainer,
>
> Setting CONFIG_HWLAT_TRACER=y enables a tracer to detect hardware latencies
> with no overhead when not used. It is not designed to be run on a production
> system, but is a useful tracer to use in embedded systems.
>
> Other distros enable this configuration option, I see no security issues or
> performance issues for users since this is by-default turned off so has to be
> enabled at runtime.
This is enabled in the RT featureset enabled kernels, and from a
previous commit from Ben Hutchings:
commit 52e8d9f36fbe727523eef4950f0fa3afb25787cd
Author: Ben Hutchings <b...@decadent.org.uk>
Date: Tue May 2 04:48:15 2017 +0100
[rt] tracing: Enable HWLAT_TRACER
This is in mainline but not that useful without PREEMPT_RT.
HWLAT_DETECTOR no longer exists but I didn't notice because
kconfigeditor2 only looks at the mainline Kconfig files.
So I guess we can close this bugreport.
Regards,
Salvatore
