From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f175.google.com (mail-pf1-f175.google.com [209.85.210.175]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2CD531F4E3B; Fri, 30 May 2025 06:24:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.175 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748586253; cv=none; b=YxwloVHyhTOm01txbvDDoOjEe0tMkbfI5dOYWOk3QerWUjbJvQLsgOhco4w08bSoe8tPkibGUSNEZpBpnHCvAklrEtF7MRErjjWIG4zvBlzf+t1VQkdlB+A4/LYbYfxVc2Gks/HoNBqX8/ya5DflBz7ccEAeQGKSuFdlV4WXHO8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748586253; c=relaxed/simple; bh=TLOr+MMbBq8LIoGHuyg4UM3GOFKuQnjTBpH9P0Fu9/A=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=tZipVBGz6Z9yOqIr7UZj6I+OU8IomzUzalmBzL6t1SfOdld88COrGH1c503q8M3exq4piB9tuLOKP06uij8tQI21TiCcHTLAUxs5+yqTNhIL0NU4Uf8/DPQyCyZCtDJ4kDkZcTOzNHLWzrLTe3ukma34OavaZRUOCg2NiVIArHA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=FnhPIZRO; arc=none smtp.client-ip=209.85.210.175 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="FnhPIZRO" Received: by mail-pf1-f175.google.com with SMTP id d2e1a72fcca58-742caef5896so1358606b3a.3; Thu, 29 May 2025 23:24:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1748586251; x=1749191051; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=2cw5LRqV40eP2YGqMoiQDq+JZrwrLC59++RLr4NsG/U=; b=FnhPIZROho7z9UIEB+jBC3EzRyqH1dkUhhm4+2z00XryJx+neYIVp06kx0hPgAz4wm fqijLJhhyNszcg6pswj3aqEH/nbI1B04F0e7ov9o7nXAA+a6nmFIY9/nbhbwiScE8TyA tWXy9x8tvn+R8UWDtfov5qEP7IjAyteBxy5tvVS6ELkQdzCKRuTYDfgGT8J6SgUOz989 8ExwqsmiWZuy1uLj1/Ew/ugQe02c5O1L/F3wjxKWchmmKTSFdzYeayGaUXno4zASHsHt tBzrnCfOXSNbRO+AZ79ODafflAZAtB9Cp/QvI4DyBbzEyZg1LJZ2M9dzV4lAULmG6csF MTDA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1748586251; x=1749191051; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=2cw5LRqV40eP2YGqMoiQDq+JZrwrLC59++RLr4NsG/U=; b=bOa6gLR49ZVKlbH1PIhm5ZWxpXsAlKMDKaadCD+0dqlpN4OKb4gJPNFlFHXUY/IjIk IhVPd6sS9yfzotqJlHSBchfjyO1j7xdRUI+dBQeCttBKSIshhNTLU0z4C78pB4Chb3s0 MNFfvQaTDqRU09r6QYTLhNal0mISQ1pOulWp5UghBmPaAqDsSBe9s/fhPODOZhFtAvb9 ZwPzh+CMS+ucrnkctHeV6tOB8kKVEAVbOBkP3UsIrhgkIygXRTIJ0ImoXkQdOQrnRBPT mjwi8CNZ4j5Oj7q45pIDUxxiW9zZOuqzT+tJJBSS6tngV94IYvvjYlglxhfoMGZcVkH+ siFQ== X-Forwarded-Encrypted: i=1; AJvYcCU0JBheBHiKTzOLcJjTGDgp0HlWMr4P1P3KJV5Mpnk4RWqZpLlIgZl7azrFTV6PN/7GX71jJMt+5yW/r/5S/iaXyw==@vger.kernel.org, AJvYcCUwgXaBbDko9PJBn0AbioEQsL1HgOu4MJ/uQtSPhJraZnzUl1vdNxcrsB8o+c4jQF0Xb8FfI6SH+oMNAVw=@vger.kernel.org X-Gm-Message-State: AOJu0YzF0tVdkuhI6CGnFn0/CFzKgrCI5GsIT3KuATFcXvVJhNJzvOoU 9eMMDsYUoxq2gyk09LTqfe8Dx7iKaZK1OAxhlAPFjMlqAttqCCq+qmfyHSL/Fzcb X-Gm-Gg: ASbGnctTGv3EXBNXsD7ywzf6Ko66DIdjIEpS2UOVW9Fwn+HcvonEWDJ7DGrRIB78q1x SY7lPlyj9+mZoxWgoG+tnk5iQm7ClvfoDOMUxW/y9gREtSySN8EP71YRNjmw8sEL2Z3l4/wzcWV roQUGO+u9OgztDL6QFKNch0CH/Z1kp6UgYURKe0zAggv7gkhWHetEUEv9RhhkyQzZ9zfh/dRYRc +y+974kcYkcIK5hJzd2PylYWauvrgOgCuRved5c4eu18desKMbVck3Ln8IfQXL89yW7Rl5tF2NN x9gj7RED6s8j9i/lmCC/Nqy9lEUD+/8Sm2oxQ3miJfAAp9YIOaRA7r84a22/gFajff8jAo5q9wH LUfxEsaK2VRw= X-Google-Smtp-Source: AGHT+IEwXUABpMD/QbtBBcIjF4niL3b2gHc8b+nw4cAZai7Ro0QnvT5OTwuPuUwmmnmosS13yUy1bA== X-Received: by 2002:a05:6a21:3418:b0:215:d14d:6626 with SMTP id adf61e73a8af0-21ad9563993mr3557338637.12.1748586251309; Thu, 29 May 2025 23:24:11 -0700 (PDT) Received: from howard.lan (c-73-202-46-50.hsd1.ca.comcast.net. [73.202.46.50]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-b2ecebb6857sm757498a12.73.2025.05.29.23.24.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 May 2025 23:24:11 -0700 (PDT) From: Howard Chu To: acme@kernel.org Cc: mingo@redhat.com, namhyung@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, irogers@google.com, adrian.hunter@intel.com, peterz@infradead.org, kan.liang@linux.intel.com, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Howard Chu Subject: [PATCH v1 0/2] perf trace: Enhance task filtering and remove an unused function Date: Thu, 29 May 2025 23:24:06 -0700 Message-ID: <20250530062408.1438861-1-howardchu95@gmail.com> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Task filtering is flawed on perf trace. Spawned threads can't get augmented, and the BPF program collects more data than it needs. This patch series adds a pids_targeted BPF map to better filter the tasks, and makes the bpf-output event '__augmented_syscalls__' system-wide. It also removes evlist__has_bpf_output() that's no longer useful. Howard Chu (2): perf trace: Enhance task filtering perf evlist: Remove evlist__has_bpf_output() tools/perf/builtin-trace.c | 52 ++++++++++++++++--- .../bpf_skel/augmented_raw_syscalls.bpf.c | 35 ++++++++++--- tools/perf/util/evlist.c | 14 +---- tools/perf/util/evlist.h | 1 - 4 files changed, 73 insertions(+), 29 deletions(-) -- 2.45.2