linux-kernel - Re: [PATCH] perf test: Remove atomics from test

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Message-ID: <20231127132957.GA76706@leoy-huanghe.lan>
Date:   Mon, 27 Nov 2023 21:29:57 +0800
From:   Leo Yan <leo.yan@...aro.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Nick Forrington <nick.forrington@....com>,
        Michael Petlan <mpetlan@...hat.com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        vmolnaro@...hat.com
Subject: Re: [PATCH] perf test: Remove atomics from test_loop to avoid test
 failures

On Mon, Nov 27, 2023 at 10:20:47AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Sun, Nov 26, 2023 at 03:41:14PM +0800, Leo Yan escreveu:
> > Maybe the commit log caused a bit confusion, the problem is after
> 
> We'll have the Link pointing to this discussion.

Okay, it's a good tracking.

> > enabling "-moutline-atomics" on aarch64, the overhead is altered into
> > the linked __aarch64_ldadd4_relax() function, test_loop() cannot be
> > sampled anymore, but it's not about stack tracing.
> > 
> > Anyway, the patch is fine for me.
> 
> I'm taking this as an Acked-by: Leo
> 
> But probably this could be even a Tested-by, ok?

Yes, here is my test tag:

Tested-by: Leo Yan <leo.yan@...aro.org>