linux-kernel - Re: [PATCH V2] cpustat: print watchdog time and statistics of soft and hard interrupts in soft lockup scenes

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Message-ID: <20190822161412.GV2369@hirez.programming.kicks-ass.net>
Date:   Thu, 22 Aug 2019 18:14:12 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     c00423981 <caomeng5@...wei.com>
Cc:     tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
        x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2] cpustat: print watchdog time and statistics of soft
 and hard interrupts in soft lockup scenes

On Thu, Aug 22, 2019 at 07:58:37PM +0800, c00423981 wrote:

> V1->V2
> - fix the broken interfaces: get_idle_time and get_iowait_time

> +	else if (index == CPUTIME_IOWAIT)
> +		time = get_iowait_time(kcs, cpu);

I'm confused; isn't that still reporting per-cpu iowait, which is still
complete garbage?