linux-kernel - Re: [PATCH v2 0/3] *** Latency histograms

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Message-ID: <2dd1733a-44c8-378e-2807-f27bb0c4f1a7@bmw-carit.de>
Date:   Thu, 25 Aug 2016 07:26:26 +0200
From:   Daniel Wagner <daniel.wagner@...-carit.de>
To:     Binoy Jayan <binoy.jayan@...aro.org>,
        Arnd Bergmann <arnd@...db.de>, <linaro-kernel@...ts.linaro.org>
CC:     Carsten Emde <C.Emde@...dl.org>, <linux-kernel@...r.kernel.org>,
        "Steven Rostedt (Red Hat)" <rostedt@...dmis.org>
Subject: Re: [PATCH v2 0/3] *** Latency histograms - IRQSOFF,PREEMPTOFF ***

Hi Binoy,

On 08/24/2016 01:17 PM, Binoy Jayan wrote:
> Histogram output:
> cat /sys/kernel/debug/tracing/events/latency/latency_irqs/hist
> cat /sys/kernel/debug/tracing/events/latency/latency_preempt/hist
> cat /sys/kernel/debug/tracing/events/latency/latency_critical_timings/hist
> cat /sys/kernel/debug/tracing/events/latency/latency_hrtimer_interrupt/hist

[...]

> Changes from v1 as per comments from Steven/Daniel
>   - Use single tracepoint for irq/preempt/critical timings by introducing
>     a trace type field to differentiate trace type in the same tracepoint.

Did you send out the right patches? This version still looks like the 
previous one in this regard. And wouldn't be the 'Histogram output' have 
only one file? Maybe I just understood something wrong here.

cheers,
daniel