Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0AA00C6FD1D for ; Mon, 20 Mar 2023 06:16:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229758AbjCTGQc (ORCPT ); Mon, 20 Mar 2023 02:16:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42064 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229747AbjCTGQa (ORCPT ); Mon, 20 Mar 2023 02:16:30 -0400 Received: from mail-pl1-x633.google.com (mail-pl1-x633.google.com [IPv6:2607:f8b0:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 32C571E1CF for ; Sun, 19 Mar 2023 23:16:29 -0700 (PDT) Received: by mail-pl1-x633.google.com with SMTP id c18so11341414ple.11 for ; Sun, 19 Mar 2023 23:16:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1679292988; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=s1PCNiHBRwaL5xJfL1tCb9ZA08+SMqP8xHlVBWEBjsM=; b=ubremerFrl/MetJDbxTwzCxOsFFOW89dj6Ic8i/5ceVLKNiIKxbuSwBwwBres9rWXL RczyUY8pw2vdptN+YAmjdvfw16koh4FxeCTUIg3i3BI3GgI27Ud+40lFIW48Pr6wBFhg avj+/20U6Pd7CWQp3c2ZoyNHCnAA+2byccXonmJt8e2zwKKrZheocn9JpFsZKDApQeOn QPPYvCX3PgLbldSwEMKlIvV/0EOKA5hb88NT9rFZ5/+l1E7sQBce8pDKuuzbNQQS838e K3zJKq2FYFR1SAIwHlhhUvlReFgRgDnIWpIprMjT0NQWCYEF+i4Hx8Mvz3o0D6nTU8jT MINQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679292988; 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=s1PCNiHBRwaL5xJfL1tCb9ZA08+SMqP8xHlVBWEBjsM=; b=lT52eTeYSgNSDtNFoHJvQXx/XvR/PISd4lPxBhqk59xbJoqsQdryzX0SG3X9ZjEd2K QogWd9XIeiOkOepqX1gSqRX4bPn6MWdS7SHbsY9H3IAaQMyhTr7UW6ayWijYuhXlkAg5 vjeFkOUO3oCmICbQvY2n0c21NfbtE0m1VK7wB09BVf3ud7puzRDsyaKCZD4vzeovnU8Y AFU2SesnOlaLmgeKKoRPJj+WMnxydAl7RHSQa8DW9Ej9uhc5OGyw0H7XPw2mxR2NO0R9 Zo4T0Mylyo3vPysnT2W9bLnfrdgEOl1a+o2BHhCalV9dyb9NmrL2Wv0OC+ZApTu4fJTj DIfg== X-Gm-Message-State: AO0yUKWJz3n7B8cqeX4+xBJFNXAGREf8TZuatFpf1tgUmAMkB8F0NvQT YGZq+ZcLjMa0UyB8vl+v0u7ueQ== X-Google-Smtp-Source: AK7set8W3WMrsItfIlYJHM1suy5V9z1TQBDnm0Genl1IweGxXIHONeZdyKN0QS7EgzRRwIel7LKh3g== X-Received: by 2002:a17:902:ec8f:b0:1a1:d544:e5ef with SMTP id x15-20020a170902ec8f00b001a1d544e5efmr1660398plg.33.1679292988578; Sun, 19 Mar 2023 23:16:28 -0700 (PDT) Received: from leoy-yangtze.lan (211-75-219-203.hinet-ip.hinet.net. [211.75.219.203]) by smtp.gmail.com with ESMTPSA id d9-20020a170902854900b0019c61616f82sm5750129plo.230.2023.03.19.23.16.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Mar 2023 23:16:27 -0700 (PDT) From: Leo Yan To: Arnaldo Carvalho de Melo , Peter Zijlstra , Ingo Molnar , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Ian Rogers , Adrian Hunter , James Clark , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Leo Yan Subject: [PATCH 0/2] perf kvm: Fix memory leak Date: Mon, 20 Mar 2023 14:16:17 +0800 Message-Id: <20230320061619.29520-1-leo.yan@linaro.org> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch seris is to address memory leak issues in perf kvm. The first patch introduces refcnt in structure kvm_info, so we can avoid memory leak for it. The second patch explicitly delete histograms entries before program exiting rather than relying on kernel releasing memory space. Leo Yan (2): perf kvm: Support refcnt in structure kvm_info perf kvm: Delete histograms entries before exiting tools/perf/builtin-kvm.c | 6 ++++-- tools/perf/util/hist.c | 5 +++++ tools/perf/util/kvm-stat.h | 37 +++++++++++++++++++++++++++++++++++++ 3 files changed, 46 insertions(+), 2 deletions(-) -- 2.39.2