linux-kernel - Re: [PATCH V3 5/6] x86/intel_rdt: Use perf infrastructure for measurements

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Message-ID: <20180917085848.GQ24124@hirez.programming.kicks-ass.net>
Date:   Mon, 17 Sep 2018 10:58:48 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Reinette Chatre <reinette.chatre@...el.com>
Cc:     tglx@...utronix.de, fenghua.yu@...el.com, tony.luck@...el.com,
        mingo@...hat.com, acme@...nel.org, gavin.hindman@...el.com,
        jithu.joseph@...el.com, dave.hansen@...el.com, hpa@...or.com,
        x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V3 5/6] x86/intel_rdt: Use perf infrastructure for
 measurements

On Tue, Sep 11, 2018 at 10:14:36AM -0700, Reinette Chatre wrote:
> +static int measure_l2_residency(void *_plr)
> +{

> +	measure_residency_fn(&perf_miss_attr, &perf_hit_attr, plr, &counts);

> +}
> +
> +static int measure_l3_residency(void *_plr)
> +{

> +	measure_residency_fn(&perf_miss_attr, &perf_hit_attr, plr, &counts);

Not sure it's important, but both sites loose the error return.