From nobody Mon Feb 9 05:40:05 2026 Received: from mail-pf1-f202.google.com (mail-pf1-f202.google.com [209.85.210.202]) (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 378CF328B5C for ; Thu, 8 Jan 2026 19:12:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767899525; cv=none; b=cE5LL9ECSVvMBmbWve/jqgj1FJA7YZq2pKzk0GAlM3GWMOYQnq8nWlvC4P6AVDTX4T0MG547Qjkr/MODqGQaSVcd/d5JF4Cd1U48NZAn+F6HvyGA4ILzHmyEM/92LTH9MPsTkAh4dK/XRk0K2gkB2ljYExc5DUVXwxUD6IH9qDk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767899525; c=relaxed/simple; bh=CtVMYcUIf02+ZMTzUrQLC0XZE4+iMH9mNrvHBr7BiZ8=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=oyp/RyMDvT8sJSJC03bXzr1JN42AAm1Fe8DvKM+NTseTTvcbHz7BMneMqdKh6Pk/AhiJYZhUJsrYGewU+FDp0ZMk/8U0XbQKqJ+Ata5/zg+mbdu3Rc/ngc+tq7fziG2JJVJailv7LlYtYp1wT/UiMe+nHK3TK+cy2QvSd7aej5Q= 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=gEewTSJ4; arc=none smtp.client-ip=209.85.210.202 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="gEewTSJ4" Received: by mail-pf1-f202.google.com with SMTP id d2e1a72fcca58-7b8a12f0cb4so3503435b3a.3 for ; Thu, 08 Jan 2026 11:12:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1767899522; x=1768504322; 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=gEewTSJ489OABQ4Bh6HhdLIuI+yG4DgbThfGbUJPisIOtx6YNhQtGfosT9vXnXQO+q iBTRe/3/YyEBHiFBwh9Qw0PTV6tSVxtua/fZbZKhDUVc/cFRaTbv3RWh60pUdtxnrMFe CelrrcCbzTyl7vnDObuRB8+7UgRnvhbm5q9TSu7e7qrvqF7AwzYcuqUehaUux19Kznjy X5aN8z5RVWYStAiLwK4fYnCBrTFIjtKeoiS6kL4Q1EFj33y9VnmA8EEX460/mXs9lSaM 7xSwylf9Dk8w1xUnW2C9Ny+ausBeVKA68/JfKcVRl0ApWq9TUoVd/xWD+KSG77gjy2XR w0EQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767899522; x=1768504322; 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=MtvBGwoCkeU4t8Pfop6Xvkfg7YMWqqsrYGwvkW0fMl2KFyQBKN9/fpbI+d86jAO06E yyLuETdUKtHb1TZ1dmIJmM9w1q+XtevPYO6x4DtbZtx8n++LsiUMJOjWaifHC51+hA+8 gGGyHXTYFNOkBIU2IKTPjlIh/ub1urbye8cA2QVXwvhyAc5B1Lq07L70GbdLAyYwbro0 ifK8Tl1RvVKpQ+U6LCxRvcZfW/gJDBgq8zSwZyRDa8DhkPv5e6WHsXkTL6nFq6zLPBtp 2lO4YSQOT1p0XLAJLvG4BCGdBiGZe30yZdUifjGnNpbuzrugeyF2yvdXHrXyiE4YEZiK w+hA== X-Forwarded-Encrypted: i=1; AJvYcCWLP7LJ1mlNQGjfx2pG3eeg98dqQO+LbE3nDi7XFHKUQQf1PuH+gBeehIbDcS4ExZb4aTVi53UV9zoBbiI=@vger.kernel.org X-Gm-Message-State: AOJu0Yxgrce+flZtvTsLALqabEjjaHr4jbRBOH7zNVKX8hkeMLLeDHJa 4xmYW8SITwRrzT4vREKdGadlHFXc6ey55oz4t9ydKJeM6VS3sjVoaY/ElpDN1d35pV2B/JwFenc sUf0Hrg+pmg== X-Google-Smtp-Source: AGHT+IFTc+BgQ0D4hs3g+bbfj9CZmqDjMMQ8iQXxj21BJt3Nqjm9xkl90KmEADwSGpvwlIkkVl3K0mPY9QXn X-Received: from pfbhx24.prod.google.com ([2002:a05:6a00:8998:b0:7dd:8bba:63ab]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a00:4ac2:b0:7e8:43f5:bd40 with SMTP id d2e1a72fcca58-81b7f6e70fdmr5793025b3a.44.1767899522297; Thu, 08 Jan 2026 11:12:02 -0800 (PST) Date: Thu, 8 Jan 2026 11:10:49 -0800 In-Reply-To: <20260108191105.695131-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260108191105.695131-1-irogers@google.com> X-Mailer: git-send-email 2.52.0.457.g6b5491de43-goog Message-ID: <20260108191105.695131-20-irogers@google.com> Subject: [PATCH v10 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 , Samantha Alt , 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