From: Thomas Gleixner <tglx@linutronix.de>
To: Craig Gallek <kraigatgoog@gmail.com>
Cc: David Decotigny <decot@google.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4] genirq: Machine-parsable version of /proc/interrupts
Date: Sat, 10 Sep 2016 01:19:11 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.20.1609100116030.9305@nanos> (raw)
In-Reply-To: <1473438501-22278-1-git-send-email-kraigatgoog@gmail.com>
On Fri, 9 Sep 2016, Craig Gallek wrote:
> +What: /sys/kernel/irq/<irq>/per_cpu_count
> +Date: September 2016
> +KernelVersion: 4.9
> +Contact: Craig Gallek <kraig@google.com>
> +Description: The number of times the interrupt has fired since boot. This
> + is a comma-separated list of counters; one per online CPU in
> + CPU id order. NOTE: If the set of online CPUs changes, the
> + counter positions in this list will also change and counters
> + for offline CPUs will not be available.
More thoughts:
We could easily print all possible cpus here instead of restricting it to
online cpus. The per cpu counters are still available.
That way you can even observe the affinity change after a online or offline
and a tool which is interrested in more than the sum wouldn't have to cope
with changing positions.
Thanks,
tglx
next prev parent reply other threads:[~2016-09-09 23:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-26 14:25 [PATCH RESEND] " Craig Gallek
2016-08-10 15:26 ` Craig Gallek
2016-09-02 13:52 ` Thomas Gleixner
2016-09-02 14:59 ` Thomas Gleixner
2016-09-06 20:55 ` Craig Gallek
2016-09-09 6:15 ` Thomas Gleixner
2016-09-08 17:34 ` [PATCH v2] " Craig Gallek
2016-09-08 17:57 ` Randy Dunlap
2016-09-08 20:25 ` [PATCH v3] " Craig Gallek
2016-09-08 22:00 ` Randy Dunlap
2016-09-08 22:15 ` Craig Gallek
2016-09-09 12:39 ` Thomas Gleixner
2016-09-09 16:28 ` [PATCH v4] " Craig Gallek
2016-09-09 23:19 ` Thomas Gleixner [this message]
2016-09-12 14:12 ` [PATCH v5] " Craig Gallek
2016-09-13 14:50 ` Thomas Gleixner
2016-09-13 16:14 ` [PATCH v6] " Craig Gallek
2016-09-14 13:34 ` [tip:irq/core] genirq: Expose interrupt information through sysfs tip-bot for Craig Gallek
2016-09-14 13:36 ` [PATCH v6] genirq: Machine-parsable version of /proc/interrupts Thomas Gleixner
2016-09-14 13:59 ` Craig Gallek
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