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

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Date:   Thu, 13 Aug 2020 13:47:58 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        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

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.

Paolo