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=-2.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 6DBADC3A59E for ; Wed, 21 Aug 2019 20:07:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 391EF23403 for ; Wed, 21 Aug 2019 20:07:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="cATKvr0x" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729748AbfHUUHI (ORCPT ); Wed, 21 Aug 2019 16:07:08 -0400 Received: from mail-qt1-f196.google.com ([209.85.160.196]:42403 "EHLO mail-qt1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727780AbfHUUHI (ORCPT ); Wed, 21 Aug 2019 16:07:08 -0400 Received: by mail-qt1-f196.google.com with SMTP id t12so4612151qtp.9; Wed, 21 Aug 2019 13:07:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:date:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=ncn6eYm4JSkQlweNtA3S5RYrt/VpHG9HsAGzGWdObeM=; b=cATKvr0xSWCkFzxywIUjL6lQn9V6IunbrJZkXS/gQl+YK0zoqooppTi4ndkH/MW5g2 kFlCNBoe6jvpzfU3jL0u3XiuF8XilYu35MqtRxfEaR9igu+1JDRG+fbAUOC/H3KZ9lOE +UhP6sD25uXWkBRrDaaTXaSmihyzfD4aDPa6hBxwExsVBkWTyn08gw73lP54nORkWBw+ 7x6XRzMenV+sFHT2Tuo3e6e6/j75sdpz8Y7Q3NKsnICEd4u0sKLS5cxzC39xVUanvnYy Y4fRdyXDbvaWN64K+P7+V0tLZKZleGLRYmSx8cJ3OSTNv6L6Xl2ApAGESnHMHC7d2yF7 Cc2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:date:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=ncn6eYm4JSkQlweNtA3S5RYrt/VpHG9HsAGzGWdObeM=; b=JGGqx8jecws5Aw9eYYbYglzyLHTlkSGSzAPbVk/Sb9bZuGJOrzVdhtw4RKt3kbJYmQ hP9TvHfMiiHKv5zxSASo3ujmMx0AeZs8G0l1iSpphTfbapQ6Y3kCcRPlfFKmDfad/Mo8 qDcZ2vzYV7TFIphb9uHVuVHlci8hhxKyKdMOY4ycj8dcRBGyPbINBZpNOzO8bJoKnJLK lPHGp00WhXRuBQ9rX+xLARJ305DMGeTXK9NwyB396xkC3oT1FwKUVOUieQKKfwUiTRVw lqz6/SJjV8ZnkYXgvF34C72SiPPmd1K+y/Xc2sxl+LLTk64eTITlFCCdZmArpQ5ducjB 3oZg== X-Gm-Message-State: APjAAAWzmGskZ9/R+2yXHdZ0N31dMW1drpskBFeirzC9IbqvagWHADlj n57adlZS+wht/hK5q+U+Rzo8EgBdJ30= X-Google-Smtp-Source: APXvYqzFBpvKYFLywp49wq7pnQMywApD6zvVMaIqNjWR9zl6SZTds2nNI0IEyhyUbFu++TjNucYitw== X-Received: by 2002:aed:2a86:: with SMTP id t6mr32542840qtd.391.1566418027658; Wed, 21 Aug 2019 13:07:07 -0700 (PDT) Received: from quaco.ghostprotocols.net ([177.195.211.175]) by smtp.gmail.com with ESMTPSA id t13sm10559914qkm.117.2019.08.21.13.07.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Aug 2019 13:07:06 -0700 (PDT) From: Arnaldo Carvalho de Melo X-Google-Original-From: Arnaldo Carvalho de Melo Received: by quaco.ghostprotocols.net (Postfix, from userid 1000) id 30FE140340; Wed, 21 Aug 2019 17:07:01 -0300 (-03) Date: Wed, 21 Aug 2019 17:07:01 -0300 To: Yonghong Song Cc: Peter Zijlstra , Daniel Xu , "bpf@vger.kernel.org" , Song Liu , Andrii Nakryiko , "mingo@redhat.com" , Alexei Starovoitov , "alexander.shishkin@linux.intel.com" , "jolsa@redhat.com" , "namhyung@kernel.org" , "linux-kernel@vger.kernel.org" , Kernel Team , Arnaldo Carvalho de Melo Subject: Re: [PATCH v3 bpf-next 1/4] tracing/probe: Add PERF_EVENT_IOC_QUERY_PROBE ioctl Message-ID: <20190821200701.GI3929@kernel.org> References: <20190820144503.GV2332@hirez.programming.kicks-ass.net> <20190821110856.GB2349@hirez.programming.kicks-ass.net> <62874df3-cae0-36a1-357f-b59484459e52@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <62874df3-cae0-36a1-357f-b59484459e52@fb.com> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.12.0 (2019-05-25) Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Em Wed, Aug 21, 2019 at 04:54:47PM +0000, Yonghong Song escreveu: > Arnaldo has a question on bcc mailing list about the hit/miss > counting of bpf program missed to process events. > https://lists.iovisor.org/g/iovisor-dev/message/1783 PERF_FORMAT_LOST seems to be a good answer to that? See my other reply to this thread. - Arnaldo