linux-kernel - Re: [RFC PATCH 6/7] core/metricfs: expose x86-specific irq information through metricfs

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Message-ID: <87a6yylp4x.fsf@nanos.tec.linutronix.de>
Date:   Thu, 13 Aug 2020 14:13:50 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Paolo Bonzini <pbonzini@...hat.com>,
        Jonathan Adams <jwadams@...gle.com>,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Cc:     netdev@...r.kernel.org, kvm@...r.kernel.org,
        Greg KH <gregkh@...uxfoundation.org>,
        Jim Mattson <jmattson@...gle.com>,
        David Rientjes <rientjes@...gle.com>
Subject: Re: [RFC PATCH 6/7] core/metricfs: expose x86-specific irq information through metricfs

Paolo Bonzini <pbonzini@...hat.com> writes:

> On 13/08/20 12:11, Thomas Gleixner wrote:
>>> Add metricfs support for displaying percpu irq counters for x86.
>>> The top directory is /sys/kernel/debug/metricfs/irq_x86.
>>> Then there is a subdirectory for each x86-specific irq counter.
>>> For example:
>>>
>>>    cat /sys/kernel/debug/metricfs/irq_x86/TLB/values
>> What is 'TLB'? I'm not aware of any vector which is named TLB.
>
> There's a "TLB" entry in /proc/interrupts.

It's TLB shootdowns and not TLB.

Thanks,

        tglx