Re: [LTP] [PATCH] perf_event_open03: Track SUnreclaim growth instead of MemAvailable

[Cyril Hrubis <chrubis@suse.cz>]

Hi!
> -	if ((sample > 5) || (diff_total > 100 * 1024))
> -		tst_res(TFAIL, "Likely kernel memory leak detected, total decrease: %ld kB", diff_total);
> -	else
> +	if ((sample > 5) || (diff_total > 100 * 1024)) {
> +		tst_res(TFAIL,
> +			"Likely kernel memory leak detected, SUnreclaim increased by %ld kB total",
> +			diff_total);
> +		tst_res(TINFO,
> +			"Unreclaimable slab can also grow due to memory activity from "
> +			"any other unrelated process. If this test fails, re-run it on "
> +			"an otherwise idle system and/or confirm with kmemleak "
> +			"(CONFIG_DEBUG_KMEMLEAK) before treating it as a real regression.");

I wouldn't be that verbose here. Maybe something as:

			"Unreclaimable slab can grow due to unrelated
			reasons as well. You can rerun the test with
			CONFIG_DEBUG_KMEMLEAK to make sure the leak is
			real.

Other than that:

Reviewed-by: Cyril Hrubis <chrubis@suse.cz>


-- 
Cyril Hrubis
chrubis@suse.cz

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