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Subject: Re: [RFC PATCH 6/7] core/metricfs: expose x86-specific irq
 information through metricfs
To:     Thomas Gleixner <tglx@linutronix.de>,
        Jonathan Adams <jwadams@google.com>,
        linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Cc:     netdev@vger.kernel.org, kvm@vger.kernel.org,
        Greg KH <gregkh@linuxfoundation.org>,
        Jim Mattson <jmattson@google.com>,
        David Rientjes <rientjes@google.com>
References: <20200807212916.2883031-1-jwadams@google.com>
 <20200807212916.2883031-7-jwadams@google.com>
 <87mu2yluso.fsf@nanos.tec.linutronix.de>
From:   Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <2500b04e-a890-2621-2f19-be08dfe2e862@redhat.com>
Date:   Thu, 13 Aug 2020 13:47:58 +0200
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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