From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BE01EC433E1 for ; Thu, 13 Aug 2020 11:59:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9AFDA208B3 for ; Thu, 13 Aug 2020 11:59:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ZXCH/R3N" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726567AbgHML7J (ORCPT ); Thu, 13 Aug 2020 07:59:09 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:59980 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726570AbgHML4L (ORCPT ); Thu, 13 Aug 2020 07:56:11 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1597319770; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=EZlOhHYV75r7YTUyN5H+sCzjVVAp8wKOhPwk4M3cflE=; b=ZXCH/R3Ni1eLV7dh7vzaWHGjOMKRNhwACQOoiCd+i4FjZMhLKHszWpT8E7sFKDVPYEsv8C 7lUYNG4QKGJEMw+l7tvXQjKg+8/uPz14dolDTHVM4GZGsp8oLzhibKnc6qcxqLWV1xQvyM zGbaLkQ9WbbMgyxovQLlZ563/Fj9GCU= Received: from mail-wr1-f70.google.com (mail-wr1-f70.google.com [209.85.221.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-580-AXUPFhH2Mhm-ywsOoBUpHA-1; Thu, 13 Aug 2020 07:48:01 -0400 X-MC-Unique: AXUPFhH2Mhm-ywsOoBUpHA-1 Received: by mail-wr1-f70.google.com with SMTP id z12so1988082wrl.16 for ; Thu, 13 Aug 2020 04:48:01 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=EZlOhHYV75r7YTUyN5H+sCzjVVAp8wKOhPwk4M3cflE=; b=LbJXqbtSbRQQn5xknidJfBOZv0PXK27+3/H4bL7vZVt0p8w/jRblYKB/ZhdT+fMBz2 3CMhQQ0rrblgHoeQ2pe8bUb+Mijr8zNs8puJx3sRIWXxUaB33g40/q2pujDCoNyMXc9M cTuqN1pc4plLr8VPIjaMiD44VT5T8wjY4HB8jRrPtrrbokqEHeOsaUpLLAtsTL9Ug2k5 h1cAJnblXEgSZOU9n4KgYZIV2h508yDcHCmzGCRC9liuwhDTVRm0BPA6BEZ4LqUomzua j6Bt9vieqxPK4Wei3niHb4seNB3BtiYgzFY4Z5Dyna2rPx05rKtScQYoYaMD0GKGdqZc 2+Vg== X-Gm-Message-State: AOAM533/ARZZ+xe5gaqyPHfP0b2MnwO8rGAL7g36E67V6a75kFbXcCDV azPrGggwuACBj/1UmkrfbyIZGFkhRb0xVxItVBNa6ec5zq2w5Sty/xB7OB7HTHSTIFm65cPgtqG wNjgsxMPZp1zzOPq+TXw6KE3z X-Received: by 2002:adf:f511:: with SMTP id q17mr3637048wro.414.1597319280147; Thu, 13 Aug 2020 04:48:00 -0700 (PDT) X-Google-Smtp-Source: ABdhPJz8RW5csMCCrSiBHobEDZMj9QmiDMAx1geqH7u8cSNLCG6KlEWPnnMnrhh1csceZBt9Jv8I0Q== X-Received: by 2002:adf:f511:: with SMTP id q17mr3637032wro.414.1597319279937; Thu, 13 Aug 2020 04:47:59 -0700 (PDT) Received: from ?IPv6:2001:b07:6468:f312:51ad:9349:1ff0:923e? ([2001:b07:6468:f312:51ad:9349:1ff0:923e]) by smtp.gmail.com with ESMTPSA id b14sm10751480wrj.93.2020.08.13.04.47.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 13 Aug 2020 04:47:59 -0700 (PDT) Subject: Re: [RFC PATCH 6/7] core/metricfs: expose x86-specific irq information through metricfs To: Thomas Gleixner , Jonathan Adams , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: netdev@vger.kernel.org, kvm@vger.kernel.org, Greg KH , Jim Mattson , David Rientjes References: <20200807212916.2883031-1-jwadams@google.com> <20200807212916.2883031-7-jwadams@google.com> <87mu2yluso.fsf@nanos.tec.linutronix.de> From: Paolo Bonzini Message-ID: <2500b04e-a890-2621-2f19-be08dfe2e862@redhat.com> Date: Thu, 13 Aug 2020 13:47:58 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <87mu2yluso.fsf@nanos.tec.linutronix.de> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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