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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BCC94C433F5 for ; Wed, 24 Nov 2021 19:35:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1351489AbhKXTih (ORCPT ); Wed, 24 Nov 2021 14:38:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34358 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1351446AbhKXTh7 (ORCPT ); Wed, 24 Nov 2021 14:37:59 -0500 Received: from mail-qt1-x82a.google.com (mail-qt1-x82a.google.com [IPv6:2607:f8b0:4864:20::82a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5E81AC06173E for ; Wed, 24 Nov 2021 11:34:46 -0800 (PST) Received: by mail-qt1-x82a.google.com with SMTP id a2so3787197qtx.11 for ; Wed, 24 Nov 2021 11:34:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ri2KPYGBCnao6/BnQ4+pDpAprHVTjBGafjmpwI8B0C0=; b=hnmLGFTx46ZwC9Zz019yxIeySG8isS4N1Hb+xt0uxyXiedpxlfbVvU0t2Uv7qsM6jg grVsJAh7q/zfD4UrSCD+SqQzKKFomfAVn/m3z4w4o4Uka//1RoTZGdm4ZreZp8Rhul5Y zdGo7zMlD8xdOjBNuLrfxIJfmaRk6YSixiyP6NXeWqJFCG8d76SSpSUzgBxLehXb3iVY WPDsGd7zEbiDFE4Mn5Y0ewPNiWTMJ6/7J53NAC7kRtavdaudJm0TBA4jma8AHZ9rUYEK mHqp5g+uu2Il55/+/N/tlhXfnD66q08Pw+m53g6KOh9VhN6YpvdLFWRj7rS79zTMb2Nq Fz6w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ri2KPYGBCnao6/BnQ4+pDpAprHVTjBGafjmpwI8B0C0=; b=M23S/rg6ULIXzok/GHImPzHsW3c6k0p82HNVfILR03dgsp4+FJHPUzuhv/tz4iWS5A pCLr19TOkSCrsoDBg855jTxRDRCu+u+Ak1Ix/2TCcTMWjmyfYQ84NQuHLCsYKapzdESU k3JKMzpiCrHA2gtsyTMNTDwuwnV3/2jovpeodnqha6Rp/jE8ZfYlCrZDzx9CW55AqSta 13F8KmEEAhKaSgrCQQJ77K76OdnOueHx91ufcgZxvcp4b8eynRlyIP913wwCXEnps4u3 hqiEb4fJYiVZ8iMdZ2Bugb6A/qvIbFAcq3NueHjvEz2Rg8G5/91C1i4LPPed1ldT9GxC dFHg== X-Gm-Message-State: AOAM5316cSiAjk+ZQiiO4+9a9vyBhtDoB8ZyJlFTFrkeH1rYJgZQ6juX BFGIgfJ+rxP3hkVERRHORdiFOw2c4lM= X-Google-Smtp-Source: ABdhPJxMF5WxEKEYu6BCd0iKW9S2ETZGQn1bUMt/CFz2UQF5u6ghl4h+M6BEXGOjGcQxn2MVEW8TLA== X-Received: by 2002:ac8:5f89:: with SMTP id j9mr10309426qta.391.1637782485311; Wed, 24 Nov 2021 11:34:45 -0800 (PST) Received: from godwin.fios-router.home (pool-108-18-207-184.washdc.fios.verizon.net. [108.18.207.184]) by smtp.gmail.com with ESMTPSA id v2sm352059qkp.72.2021.11.24.11.34.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Nov 2021 11:34:44 -0800 (PST) From: Sean Anderson To: linux-kernel@vger.kernel.org, Andrew Morton Cc: Zhang Shengju , Tang Bin , Zhenliang Wei , Changhee Han , Sean Anderson Subject: [PATCH 2/2] tools/vm/page_owner_sort.c: Add Date: Wed, 24 Nov 2021 14:34:40 -0500 Message-Id: <20211124193440.1805610-2-seanga2@gmail.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211124193440.1805610-1-seanga2@gmail.com> References: <20211124193440.1805610-1-seanga2@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds the ability to sort by stacktraces. This is helpful when comparing multiple dumps of page_owner taken at different times, since blocks will not be reordered if they were allocated/free'd. Signed-off-by: Sean Anderson --- tools/vm/page_owner_sort.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/tools/vm/page_owner_sort.c b/tools/vm/page_owner_sort.c index 9ad3772a294d..b91d3381300c 100644 --- a/tools/vm/page_owner_sort.c +++ b/tools/vm/page_owner_sort.c @@ -29,7 +29,6 @@ struct block_list { int page_num; }; -static int sort_by_memory; static regex_t order_pattern; static struct block_list *list; static int list_size; @@ -134,13 +133,16 @@ static void add_list(char *buf, int len) static void usage(void) { - printf("Usage: ./page_owner_sort [-m] \n" - "-m Sort by total memory. If this option is unset, sort by times\n" + printf("Usage: ./page_owner_sort [OPTIONS] \n" + "-m Sort by total memory.\n" + "-s Sort by the stack trace.\n" + "-t Sort by times (default).\n" ); } int main(int argc, char **argv) { + int (*cmp)(const void *, const void *) = compare_num; FILE *fin, *fout; char *buf; int ret, i, count; @@ -149,10 +151,16 @@ int main(int argc, char **argv) int err; int opt; - while ((opt = getopt(argc, argv, "m")) != -1) + while ((opt = getopt(argc, argv, "mst")) != -1) switch (opt) { case 'm': - sort_by_memory = 1; + cmp = compare_page_num; + break; + case 's': + cmp = compare_stacktrace; + break; + case 't': + cmp = compare_num; break; default: usage(); @@ -221,10 +229,7 @@ int main(int argc, char **argv) } } - if (sort_by_memory) - qsort(list2, count, sizeof(list[0]), compare_page_num); - else - qsort(list2, count, sizeof(list[0]), compare_num); + qsort(list2, count, sizeof(list[0]), cmp); for (i = 0; i < count; i++) fprintf(fout, "%d times, %d pages:\n%s\n", -- 2.33.0