From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 41E6E595728; Wed, 16 Sep 2026 16:32:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789576334; cv=none; b=GUXvGkiN8rd2bxSapHEgJ66v/DXpKhfeLZN/ez/J6//428hy9zvj+/kR/YHjKUrehcuYFVrA2mE5lwIm44upwevvCpnDTDNbUh1SzlHST4HCgxixy/Tpl0NGLca8J0jNuqt1Zjbbp+XeULMBAn4BAd9LFML6iVSoHMTrBcUbQD4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789576334; c=relaxed/simple; bh=VRITBro7OPYE9RiLhLIysp3FRLaQ04H1UTy+Z0gFD/4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Q28mAxMyoB4OGL8QcOSJLQYvrK7r6AI6xkiFwlrTFgYVlPk+GkTbhCTl8pglGNYC8hI2uwT0KNulCmeqdTHmIhltXAwq5FNuEjlzoE2XRCojqxOf7aCmzzYZufEPER7m8ozqYPYDD8f9POu69XkIQrms2b+SItXDw1XuNi0yhCo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=InEwcQ97; arc=none smtp.client-ip=192.198.163.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="InEwcQ97" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1789576329; x=1821112329; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=VRITBro7OPYE9RiLhLIysp3FRLaQ04H1UTy+Z0gFD/4=; b=InEwcQ97YGmk+jM991DToIfpSXPwuR47dSjP/d+LBgAY6TmyPervWx6I Vl8FkjohVnGq34Quiwvp72l1/i/zhQt8oPnaXtS2zovYBe6GRPa+OpiZV RPyA5IXCH1v/zud1DGvdwEjqsl3+6AUJbbNwQFbZGvOO4MWX5mz1iO9zw BaaqMoHIeyjCCTj7eD9Bb+3AZbruwYPcQc38b79kzlu519oEvlsntspTD Skum/OWR/O4d/Mw2OWgDX/NstjDkowc7wYBizwcgtkpbwyRCQXnepb/zO e1mA16m2PJKuRXspIunpw07IQedW5yseHdNA3lhA5vC/jPts9VkvrqIwe w==; X-CSE-ConnectionGUID: RQGTNBQfQjiHexm2Tc9wwA== X-CSE-MsgGUID: NMQgrhCpQQai8DRbUlu2SQ== X-IronPort-AV: E=McAfee;i="6800,10657,11905"; a="90093433" X-IronPort-AV: E=Sophos;i="6.27,103,1787036400"; d="scan'208";a="90093433" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Sep 2026 09:31:52 -0700 X-CSE-ConnectionGUID: 0LadkgAARw68N3mYTlxfaA== X-CSE-MsgGUID: 1BsSITbiQ7ykR/1EmP4DJw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,103,1787036400"; d="scan'208";a="273363839" Received: from iherna2-mobl4.amr.corp.intel.com (HELO tfalcon-desk.attlocal.net) ([10.124.223.212]) by orviesa007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Sep 2026 09:31:51 -0700 From: Thomas Falcon To: Arnaldo Carvalho de Melo Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Peter Zijlstra , Ingo Molnar , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , James Clark , Dapeng Mi Subject: [PATCH v10 6/6] perf c2c: print memory region data with stdio output Date: Wed, 16 Sep 2026 11:31:27 -0500 Message-ID: <20260916163127.318885-7-thomas.falcon@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260916163127.318885-1-thomas.falcon@intel.com> References: <20260916163127.318885-1-thomas.falcon@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Print memory range data in perf-c2c subcommand. Only available in stdio mode currently. If memory ranges are not supported or present, print nothing. Example output of perf c2c report --stdio: ================================================= Memory Ranges ================================================= Range 0: [0x0000000000000000-0x00000000bfffffff] Node 0, local region id 0, remote region id 255 Range 1: [0x0000000100000000-0x000000203fffffff] Node 0, local region id 0, remote region id 255 Range 2: [0x0000008000000000-0x0000027fffffffff] Node -2, local region id 1, remote region id 255 Range 3: [0x0000028000000000-0x0000047fffffffff] Node -2, local region id 1, remote region id 255 Range 4: [0x0000048000000000-0x000004ffffffffff] Node -2, local region id 1, remote region id 255 Assisted-by: Sashiko:gemini-3.1-pro-preview Reviewed-by: Ian Rogers Reviewed-by: Namhyung Kim Signed-off-by: Thomas Falcon --- v10: Fixup double blank line before print_memory_ranges_info() define --- tools/perf/builtin-c2c.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index ad3b63acd0ee..fad7ab22fc37 100644 --- a/tools/perf/builtin-c2c.c +++ b/tools/perf/builtin-c2c.c @@ -2612,6 +2612,33 @@ static void print_c2c_info(FILE *out, struct perf_session *session) fprintf(out, " Cacheline data grouping : %s\n", c2c.cl_sort); } +static void print_memory_ranges_info(FILE *out, struct perf_session *session) +{ + struct perf_env *env = perf_session__env(session); + int nr_ranges = 0; + + if (!perf_header__has_feat(&session->header, HEADER_MEMORY_RANGES)) + return; + nr_ranges = env->nr_memory_ranges; + if (nr_ranges == 0) { + pr_debug("No memory ranges found, skipping\n"); + return; + } + + fprintf(out, "\n"); + fprintf(out, "=================================================\n"); + fprintf(out, " Memory Ranges \n"); + fprintf(out, "=================================================\n"); + + for (int i = 0; i < nr_ranges; i++) { + struct memory_range *r = &env->memory_ranges[i]; + + fprintf(out, "Range %d: [0x%016" PRIx64 "-0x%016" PRIx64 "] Node %d, local region id %u, remote region id %u\n", + i, r->base, r->base + r->length - 1, r->node, + r->local_region_id, r->remote_region_id); + } +} + static void perf_c2c__hists_fprintf(FILE *out, struct perf_session *session) { setup_pager(); @@ -2625,6 +2652,8 @@ static void perf_c2c__hists_fprintf(FILE *out, struct perf_session *session) if (c2c.stats_only) return; + print_memory_ranges_info(out, session); + fprintf(out, "\n"); fprintf(out, "=================================================\n"); fprintf(out, " Shared Data Cache Line Table \n"); -- 2.43.0