From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f201.google.com (mail-pf1-f201.google.com [209.85.210.201]) (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 D3C0C335BA8 for ; Thu, 8 Jan 2026 19:12:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767899546; cv=none; b=f1OEwQpn5rb89mWplVfv1YgYfI0RpreyROTncUWiGPTGRorwAJsQA1BugYRfiV4yfEMLIDM8qknmJLEC+xorVhQNx2Rv+olsIBwvKEV7f9sMzDOIzX+MOdzCmQrxZcEVGYKQoo2jNiBP4eNuuRQrGJ3guE3ExqOhyCpbdrs781w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767899546; c=relaxed/simple; bh=0/p47u8XI/jepoD/8n27VWWYDMXq2JoIclYASBN8NcM=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=Zps2Gk5/Q0QTenE27xkWm4HIoNxJ4gZ465b90rbO3Z3JS103JNCnM4rN0pA/R4ir7/l8k/GwE5BAFIy6SUrv6IfmK5bnXzcwlgsjZ4SYVoWqqDcaxOcAm/heHHLhEAsdlX86s4PrSd/U2ze7LN08CjB5TYRY56MPelDKBs9U0JE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=rcrGPhfJ; arc=none smtp.client-ip=209.85.210.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="rcrGPhfJ" Received: by mail-pf1-f201.google.com with SMTP id d2e1a72fcca58-81d9b88caf2so321023b3a.1 for ; Thu, 08 Jan 2026 11:12:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1767899543; x=1768504343; darn=vger.kernel.org; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=a8hELqlVqsPd53TkBvYAfiL9c8Iu/vvPZfjM7X/WNAc=; b=rcrGPhfJNk5kseZLM0pau/Ffv02I8+NsCn4M2H4WiTBrujnL1+ojGjqiirQDAlTLlb 822b3ukRb8jNUuuC/dxEzzSjAiUY6zTfme+SmfeyupCITvHv5wyCi7FvMTcQWDO8b8c/ lc2FuaFcbnIg5uXvgOdZ1WrVSk311QKW5Mqm4u/Vb4ZMdhXSLtS2Dzb8VHjqAalLKTcM OQL5RXvMfgIp2lC8wlEcEoE90bLRddtNwHDGEutsKQa05RTI2wShfmN2WPmVYO5rAMPH /zkjBEDPnodvAjExPDI48C1ol08ylabqV40lPGMRejCuJnQ8d6aDDOSOe7IXWyNuzKnH jipA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767899543; x=1768504343; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=a8hELqlVqsPd53TkBvYAfiL9c8Iu/vvPZfjM7X/WNAc=; b=Rj418ZGY4nb6F9lwyJJkAom+r/sUjYPQs34bD3Als0Idm8h0bT+mMEZtwf+15bCBpz CZVfgcHPDrSaXzwsYE6CZpmttaCKD361PUbtpIUHit2+EwWi9XDuTHOIfLJB8iMfmSGP KMw1jrsiOBIaQZkVqT1fNZEOCe9czSJndsdTl9M65vT/+CXXbmBe4Uu7Xk0wuTowNXT/ rMy9jCL0z9uO0NcNGC0RWqqPONiksmy4KHpXQ84RbKqDy17x62U2Bp7wARVyBJL/8569 hwBnxARg0PCZWdlxXx4yIEHX48TgV2Q+7HcgVS2kZVkj2EAdh5LAN5wkE+Pnx1c2FJma MGiA== X-Forwarded-Encrypted: i=1; AJvYcCUBRU53rRYPslOtQtxBhduOThhm3KoYXzLmc0vD1AyDATnCqm+2iHY/ePbmzJphax1atG99WjzpLm/JcWhswJFq@vger.kernel.org X-Gm-Message-State: AOJu0Yya1KDy2SAlbh4wHkTYG97CGj7fKj9KfK2dWSZp9mpfSFwQFZPE yaYSI2Y7l5M8dZoMC2AJDuBW+hJXOqwlR1pL6co40JNq5v+HzQQ0XlsyH4x09CWFXHa9h9k5O2t UI1euMxfRdw== X-Google-Smtp-Source: AGHT+IFRLVCG00OMl4aUYaYlQrWXSJrN6jHeG/wDPN6BSUfe309G2jTBMOTWjoyJ5g1BW6F9QWsfjo74w4mH X-Received: from pfbde15.prod.google.com ([2002:a05:6a00:468f:b0:81c:668c:d977]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a00:440a:b0:7a2:7bdd:cbe8 with SMTP id d2e1a72fcca58-81b7de55545mr5958156b3a.18.1767899542556; Thu, 08 Jan 2026 11:12:22 -0800 (PST) Date: Thu, 8 Jan 2026 11:11:00 -0800 In-Reply-To: <20260108191105.695131-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260108191105.695131-1-irogers@google.com> X-Mailer: git-send-email 2.52.0.457.g6b5491de43-goog Message-ID: <20260108191105.695131-31-irogers@google.com> Subject: [PATCH v10 30/35] perf jevents: Add C-State metrics from the PCU PMU for Intel From: Ian Rogers To: Adrian Hunter , Alexander Shishkin , Arnaldo Carvalho de Melo , Benjamin Gray , Caleb Biggers , Edward Baker , Ian Rogers , Ingo Molnar , James Clark , Jing Zhang , Jiri Olsa , John Garry , Leo Yan , Namhyung Kim , Perry Taylor , Peter Zijlstra , Samantha Alt , Sandipan Das , Thomas Falcon , Weilin Wang , Xu Yang , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Use occupancy events fixed in: https://lore.kernel.org/lkml/20240226201517.3540187-1-irogers@google.com/ Metrics are at the socket level referring to cores, not hyperthreads. Tested-by: Thomas Falcon Signed-off-by: Ian Rogers --- tools/perf/pmu-events/intel_metrics.py | 30 ++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/tools/perf/pmu-events/intel_metrics.py b/tools/perf/pmu-events/intel_metrics.py index 24ceb7f8719b..118fe0fc05a3 100755 --- a/tools/perf/pmu-events/intel_metrics.py +++ b/tools/perf/pmu-events/intel_metrics.py @@ -815,6 +815,35 @@ def IntelLdSt() -> Optional[MetricGroup]: ], description="Breakdown of load/store instructions") +def UncoreCState() -> Optional[MetricGroup]: + try: + pcu_ticks = Event("UNC_P_CLOCKTICKS") + c0 = Event("UNC_P_POWER_STATE_OCCUPANCY.CORES_C0") + c3 = Event("UNC_P_POWER_STATE_OCCUPANCY.CORES_C3") + c6 = Event("UNC_P_POWER_STATE_OCCUPANCY.CORES_C6") + except: + return None + + num_cores = Literal("#num_cores") / Literal("#num_packages") + + max_cycles = pcu_ticks * num_cores + total_cycles = c0 + c3 + c6 + + # remove fused-off cores which show up in C6/C7. + c6 = Select(max(c6 - (total_cycles - max_cycles), 0), + total_cycles > max_cycles, + c6) + + return MetricGroup("lpm_cstate", [ + Metric("lpm_cstate_c0", "C-State cores in C0/C1", + d_ratio(c0, pcu_ticks), "cores"), + Metric("lpm_cstate_c3", "C-State cores in C3", + d_ratio(c3, pcu_ticks), "cores"), + Metric("lpm_cstate_c6", "C-State cores in C6/C7", + d_ratio(c6, pcu_ticks), "cores"), + ]) + + def UncoreDir() -> Optional[MetricGroup]: try: m2m_upd = Event("UNC_M2M_DIRECTORY_UPDATE.ANY") @@ -979,6 +1008,7 @@ def main() -> None: IntelMlp(), IntelPorts(), IntelSwpf(), + UncoreCState(), UncoreDir(), UncoreMem(), UncoreMemBw(), -- 2.52.0.457.g6b5491de43-goog