From nobody Mon Feb 9 16:51:59 2026 Received: from mail-dy1-f202.google.com (mail-dy1-f202.google.com [74.125.82.202]) (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 480E1367F36 for ; Tue, 27 Jan 2026 18:46:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769539565; cv=none; b=amD3x5mvJaX/OldPVtn1ys+n2/CTycnMfrNkXSYQ8tFzXKU0EhLwoaj/FytYkq6FqC2oAYmfGvu3PLtTS2vdI9HPNcVTDyQC3dvtYr0Wp+knncbbQPcvXjA/xdFzYArMlzOZQjxJHhGXfBJdfEbf4p1cMmlmJpEfu3WIAOV0IHU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769539565; c=relaxed/simple; bh=CtVMYcUIf02+ZMTzUrQLC0XZE4+iMH9mNrvHBr7BiZ8=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=sVXlnyGy74fF9RUjI2M7azg7tmXyWRnkNdQPL8Z8mubcmuWa+wtL0xhMCDV6kCEQSPUz7mk+weCMUwwbSldol7udemgsV+XvSnKsyA7RZjGF7TTJIOS2zYqKWEAXyfwJyfTKIiFHQk/Nwdw2uT5kH+WS6vER5p1n1hYgTmUc/tE= 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=vx1G+l96; arc=none smtp.client-ip=74.125.82.202 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="vx1G+l96" Received: by mail-dy1-f202.google.com with SMTP id 5a478bee46e88-2b70d8095daso5754124eec.1 for ; Tue, 27 Jan 2026 10:46:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1769539563; x=1770144363; 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=VK0zyNurabiFsImDIZqSBtyLaLOCoRSnfPTqeYDaNRE=; b=vx1G+l96Dvhv8yZslPpp2XFzzZqfBfqUZl7BS0cS9a1hirSKzq0U80I3C9oJebp3PA oCXN+rYKmrqNK0vTHavGYvg46I+OWUcrtbTLQAjysfeFYyceb6efo5oujYy0kAZaS+IM 9X/ttypwUylU6Xarfz+8WruwyK1I+COYBL/55185EYMsjZzpCMX9nGSYHGSqZDkVwYAf POfszWMRHYWbjV8ao3mKzAEOgf6g/5kL4kB9NsQIzccTf85BXEGdrHk8OrNMN73COu5p 00C9mAt3clKK9Mj1lMdG6rQQhYujeN0thQYBpFiYXtE1hSDUHDAA99cHA2KemqoRiMcY 7JpQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769539563; x=1770144363; 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=VK0zyNurabiFsImDIZqSBtyLaLOCoRSnfPTqeYDaNRE=; b=c3jhVtyVfNNeft50qoZlCN1iI8SHFRNXzLdZCGEN5rxYiK+u/QbJr4tuQCBKq75+M5 zGbMva+dssFv8Z4ior/tOmDzmTxlH8B7RCCIJsVrZqCC4PK6rHUAnEuqWcwF88uSHjSu 2sCbUI6I+Mz73/ZY9nSN5ygYQUvlMBDSJ2j0A2nrYhSx1b8jjyWPjNc10y4eV9v7Vxlo HpA4Uw9EH69zKH7o4BL7ei+g8VItmhmOnQ3li4eDkgrngxz1RqMwmY33S4eDvHaLuCzg zBSiJDrYkzKaK4fSeJSHLlFGkf+Hw/eP+TXUHjoZaYB3b1yVIsphYZMnsdbBUg4dAVYf 2Dig== X-Forwarded-Encrypted: i=1; AJvYcCVGdF/+y+/G+/szdglZkU4oQ9E1WkpkfYmgNmdqCQvuDFKgFvBQUkqDekPpYUKOxuGrETzlUK9A5he+jiM=@vger.kernel.org X-Gm-Message-State: AOJu0YwjorIZPqT/eTGX2NldInwD41WSRiZdQMuJZamZCX4aLo/apHEO UUilk+a59v3Nz1MW99a6uFp8fKW8saOUx8bqfUtnQatyRRmXH3pWGyXLmJichzhco5rW5mwHJqI 7IVHYoxmKUQ== X-Received: from dybpe6.prod.google.com ([2002:a05:7301:4586:b0:2b7:4bcf:315a]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7300:ad09:b0:2a4:3593:ddd9 with SMTP id 5a478bee46e88-2b78d8d38c2mr1529991eec.6.1769539562969; Tue, 27 Jan 2026 10:46:02 -0800 (PST) Date: Tue, 27 Jan 2026 10:44:50 -0800 In-Reply-To: <20260127184506.3059493-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260127184506.3059493-1-irogers@google.com> X-Mailer: git-send-email 2.52.0.457.g6b5491de43-goog Message-ID: <20260127184506.3059493-20-irogers@google.com> Subject: [PATCH v11 19/35] perf jevents: Add software prefetch (swpf) metric group 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 , Sandipan Das , Thomas Falcon , Weilin Wang , Xu Yang , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add metrics that breakdown software prefetch instruction use. Tested-by: Thomas Falcon Signed-off-by: Ian Rogers --- tools/perf/pmu-events/intel_metrics.py | 66 ++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) diff --git a/tools/perf/pmu-events/intel_metrics.py b/tools/perf/pmu-events= /intel_metrics.py index e1944d821248..919a058c343a 100755 --- a/tools/perf/pmu-events/intel_metrics.py +++ b/tools/perf/pmu-events/intel_metrics.py @@ -261,6 +261,71 @@ def IntelBr(): description=3D"breakdown of retired branch instruct= ions") =20 =20 +def IntelSwpf() -> Optional[MetricGroup]: + ins =3D Event("instructions") + try: + s_ld =3D Event("MEM_INST_RETIRED.ALL_LOADS", + "MEM_UOPS_RETIRED.ALL_LOADS") + s_nta =3D Event("SW_PREFETCH_ACCESS.NTA") + s_t0 =3D Event("SW_PREFETCH_ACCESS.T0") + s_t1 =3D Event("SW_PREFETCH_ACCESS.T1_T2") + s_w =3D Event("SW_PREFETCH_ACCESS.PREFETCHW") + except: + return None + + all_sw =3D s_nta + s_t0 + s_t1 + s_w + swp_r =3D d_ratio(all_sw, interval_sec) + ins_r =3D d_ratio(ins, all_sw) + ld_r =3D d_ratio(s_ld, all_sw) + + return MetricGroup("lpm_swpf", [ + MetricGroup("lpm_swpf_totals", [ + Metric("lpm_swpf_totals_exec", "Software prefetch instructions= per second", + swp_r, "swpf/s"), + Metric("lpm_swpf_totals_insn_per_pf", + "Average number of instructions between software prefet= ches", + ins_r, "insn/swpf"), + Metric("lpm_swpf_totals_loads_per_pf", + "Average number of loads between software prefetches", + ld_r, "loads/swpf"), + ]), + MetricGroup("lpm_swpf_bkdwn", [ + MetricGroup("lpm_swpf_bkdwn_nta", [ + Metric("lpm_swpf_bkdwn_nta_per_swpf", + "Software prefetch NTA instructions as a percent of= all prefetch instructions", + d_ratio(s_nta, all_sw), "100%"), + Metric("lpm_swpf_bkdwn_nta_rate", + "Software prefetch NTA instructions per second", + d_ratio(s_nta, interval_sec), "insn/s"), + ]), + MetricGroup("lpm_swpf_bkdwn_t0", [ + Metric("lpm_swpf_bkdwn_t0_per_swpf", + "Software prefetch T0 instructions as a percent of = all prefetch instructions", + d_ratio(s_t0, all_sw), "100%"), + Metric("lpm_swpf_bkdwn_t0_rate", + "Software prefetch T0 instructions per second", + d_ratio(s_t0, interval_sec), "insn/s"), + ]), + MetricGroup("lpm_swpf_bkdwn_t1_t2", [ + Metric("lpm_swpf_bkdwn_t1_t2_per_swpf", + "Software prefetch T1 or T2 instructions as a perce= nt of all prefetch instructions", + d_ratio(s_t1, all_sw), "100%"), + Metric("lpm_swpf_bkdwn_t1_t2_rate", + "Software prefetch T1 or T2 instructions per second= ", + d_ratio(s_t1, interval_sec), "insn/s"), + ]), + MetricGroup("lpm_swpf_bkdwn_w", [ + Metric("lpm_swpf_bkdwn_w_per_swpf", + "Software prefetch W instructions as a percent of a= ll prefetch instructions", + d_ratio(s_w, all_sw), "100%"), + Metric("lpm_swpf_bkdwn_w_rate", + "Software prefetch W instructions per second", + d_ratio(s_w, interval_sec), "insn/s"), + ]), + ]), + ], description=3D"Software prefetch instruction breakdown") + + def main() -> None: global _args =20 @@ -291,6 +356,7 @@ def main() -> None: Smi(), Tsx(), IntelBr(), + IntelSwpf(), ]) =20 if _args.metricgroups: --=20 2.52.0.457.g6b5491de43-goog