From nobody Wed Dec 10 20:09:59 2025 Received: from mail-pl1-f201.google.com (mail-pl1-f201.google.com [209.85.214.201]) (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 7BB7D3101D4 for ; Thu, 13 Nov 2025 03:21:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763004101; cv=none; b=bFyo2wOGiARlG1D2geFFVAo/pWVTAlB/xLf0tNO+syCWRt1Hh+UokLCeMPbczq50d9tmPprK+Azpqgb4aniapwia7PizxY37wmqsbcbHsQb187mYVxzGE3AnOH3MOPM4DAlm9hRns4EJBrkvtq6+jY+ahIG/d+4hMTyCLdTb3r4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763004101; c=relaxed/simple; bh=yg0mt3Fzot10P+eNDcOUbH/iz4GunqXxO6YAxrwdE44=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=U4IN5lZIr8epMYgmxW22a9ptgmbzimjuegJKMMtiAqjj5vITUY1lkhqGO+WvKClLMWXtoeX4q73EiyWvZl5Ya4AEYStVfr7JyrXLUFoRkqvj8XYLgt96/Kbunn/spcqjAda/tRyy1moRQ5lfdQfmHUtgHivvMFlC5nj+cobz3ww= 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=wTKpKdRm; arc=none smtp.client-ip=209.85.214.201 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="wTKpKdRm" Received: by mail-pl1-f201.google.com with SMTP id d9443c01a7336-29845b18d1aso4341655ad.1 for ; Wed, 12 Nov 2025 19:21:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1763004100; x=1763608900; 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=reofRYC+oJf3mFk6RisvPqv+0Lly+TkhvyT/wiXYQcg=; b=wTKpKdRmEf7Q4f/IFvlOOvb59yj8CzCuXZnd244JOF2ngeDxP5J+b1NFSENBOfWtMw 93/uH/XmMVerwhf3jGvgpC7usQ3ftiVs3xJTksQhY1tSlEjKJMGSHh4UpbNkiQtSkxZH ULVSnEFyBrfO/qEWKPMwtL/Ej9Z9uzpx5WVhq2Ack4I06Bu3/LR9ZapDtx3kNMPXOiQf b5D9o2ySmemtcdpmuBfHCR6txfJfA0AnzX1S8Y0QpUY4OF/GPCqUFzlCtX9sU4NRFFcH SB5ZXljtbAO8ae3frYxN3b4KzPB8Eq0Q71TsiepFH+GBq+v3kQZ5kaUtyGmRM0QDvxlk 5tmA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763004100; x=1763608900; 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=reofRYC+oJf3mFk6RisvPqv+0Lly+TkhvyT/wiXYQcg=; b=gCQDSCsOpdm47OKA/qC3ukozNTWfKNBbYyCwwPqyK617aELe1XBFBaApfC80ljtPZh YVFb7eKhYxD0/m7J3H3IYlitZcBRTf2D7nZo7v915dMLgVvuMnPFgD9vs7qjcUmXOp+3 jK7Ms8Uel8Vso4/LL48KIce1kDhl2fetRVdd9xWG4TY7QQFJHVAk63dS1qtwM1cJ20bo jZxte1daViR0zb9z8pJ+8MFU1C8UXk2JOOaAxzm81LZFx/qXPKexTvHrhqOR8CELsFuK 52dA0JW6hACq5l/rJ34hU4z2Urdgcxpue+bS2zKF9B93P3K1MUrDM+a3Jb6ve2d7DgZf evyQ== X-Forwarded-Encrypted: i=1; AJvYcCXF7fULSFuyIqnPG2+L/vMEUeHUijsm+xL/K24ic0JG4upphK6jA+DoT3l04aNT2FV330GAcVqbgK7o2tc=@vger.kernel.org X-Gm-Message-State: AOJu0Yy2z42445cDAwenGY6gZ2g9j34yiZrJ5B6eOmGlb5Bofc6SQNX/ 4HupjNzzshllHGYhjpdofEVk8tipHUjdjM8G9he6Tfgsxfie3RnrJt5NsOOfL3JS2X8T8e8STD6 uGWmrXCvq2w== X-Google-Smtp-Source: AGHT+IFFURIhDsoWperE6E0wEJSVGWWpEc1yQCNVIRrUkX8FAAk/DyUqxwrEiSLSauum95UUhWMUe3eG7LIc X-Received: from dlah19.prod.google.com ([2002:a05:701b:2613:b0:119:49ca:6b93]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a17:902:e788:b0:295:560a:e499 with SMTP id d9443c01a7336-2984ed2b60emr69691935ad.5.1763004099859; Wed, 12 Nov 2025 19:21:39 -0800 (PST) Date: Wed, 12 Nov 2025 19:20:12 -0800 In-Reply-To: <20251113032040.1994090-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251113032040.1994090-1-irogers@google.com> X-Mailer: git-send-email 2.51.2.1041.gc1ab5b90ca-goog Message-ID: <20251113032040.1994090-25-irogers@google.com> Subject: [PATCH v8 24/52] perf jevents: Add load store breakdown metrics ldst for AMD 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" Give breakdown of number of instructions. Use the counter mask (cmask) to show the number of cycles taken to retire the instructions. Signed-off-by: Ian Rogers --- tools/perf/pmu-events/amd_metrics.py | 75 ++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) diff --git a/tools/perf/pmu-events/amd_metrics.py b/tools/perf/pmu-events/a= md_metrics.py index d748b5c1d791..53f7c2198147 100755 --- a/tools/perf/pmu-events/amd_metrics.py +++ b/tools/perf/pmu-events/amd_metrics.py @@ -279,6 +279,80 @@ def AmdItlb(): ], description=3D"Instruction TLB breakdown") =20 =20 +def AmdLdSt() -> MetricGroup: + ldst_ld =3D Event("ls_dispatch.ld_dispatch") + ldst_st =3D Event("ls_dispatch.store_dispatch") + ldst_ldc1 =3D Event(f"{ldst_ld}/cmask=3D1/") + ldst_stc1 =3D Event(f"{ldst_st}/cmask=3D1/") + ldst_ldc2 =3D Event(f"{ldst_ld}/cmask=3D2/") + ldst_stc2 =3D Event(f"{ldst_st}/cmask=3D2/") + ldst_ldc3 =3D Event(f"{ldst_ld}/cmask=3D3/") + ldst_stc3 =3D Event(f"{ldst_st}/cmask=3D3/") + ldst_cyc =3D Event("ls_not_halted_cyc") + + ld_rate =3D d_ratio(ldst_ld, interval_sec) + st_rate =3D d_ratio(ldst_st, interval_sec) + + ld_v1 =3D max(ldst_ldc1 - ldst_ldc2, 0) + ld_v2 =3D max(ldst_ldc2 - ldst_ldc3, 0) + ld_v3 =3D ldst_ldc3 + + st_v1 =3D max(ldst_stc1 - ldst_stc2, 0) + st_v2 =3D max(ldst_stc2 - ldst_stc3, 0) + st_v3 =3D ldst_stc3 + + return MetricGroup("lpm_ldst", [ + MetricGroup("lpm_ldst_total", [ + Metric("lpm_ldst_total_ld", "Number of loads dispatched per se= cond.", + ld_rate, "insns/sec"), + Metric("lpm_ldst_total_st", "Number of stores dispatched per s= econd.", + st_rate, "insns/sec"), + ]), + MetricGroup("lpm_ldst_percent_insn", [ + Metric("lpm_ldst_percent_insn_ld", + "Load instructions as a percentage of all instructions.= ", + d_ratio(ldst_ld, ins), "100%"), + Metric("lpm_ldst_percent_insn_st", + "Store instructions as a percentage of all instructions= .", + d_ratio(ldst_st, ins), "100%"), + ]), + MetricGroup("lpm_ldst_ret_loads_per_cycle", [ + Metric( + "lpm_ldst_ret_loads_per_cycle_1", + "Load instructions retiring in 1 cycle as a percentage of = all " + "unhalted cycles.", d_ratio(ld_v1, ldst_cyc), "100%"), + Metric( + "lpm_ldst_ret_loads_per_cycle_2", + "Load instructions retiring in 2 cycles as a percentage of= all " + "unhalted cycles.", d_ratio(ld_v2, ldst_cyc), "100%"), + Metric( + "lpm_ldst_ret_loads_per_cycle_3", + "Load instructions retiring in 3 or more cycles as a perce= ntage" + "of all unhalted cycles.", d_ratio(ld_v3, ldst_cyc), "100%= "), + ]), + MetricGroup("lpm_ldst_ret_stores_per_cycle", [ + Metric( + "lpm_ldst_ret_stores_per_cycle_1", + "Store instructions retiring in 1 cycle as a percentage of= all " + "unhalted cycles.", d_ratio(st_v1, ldst_cyc), "100%"), + Metric( + "lpm_ldst_ret_stores_per_cycle_2", + "Store instructions retiring in 2 cycles as a percentage o= f all " + "unhalted cycles.", d_ratio(st_v2, ldst_cyc), "100%"), + Metric( + "lpm_ldst_ret_stores_per_cycle_3", + "Store instructions retiring in 3 or more cycles as a perc= entage" + "of all unhalted cycles.", d_ratio(st_v3, ldst_cyc), "100%= "), + ]), + MetricGroup("lpm_ldst_insn_bt", [ + Metric("lpm_ldst_insn_bt_ld", "Number of instructions between = loads.", + d_ratio(ins, ldst_ld), "insns"), + Metric("lpm_ldst_insn_bt_st", "Number of instructions between = stores.", + d_ratio(ins, ldst_st), "insns"), + ]) + ], description=3D"Breakdown of load/store instructions") + + def AmdHwpf(): """Returns a MetricGroup representing AMD hardware prefetch metrics.""" global _zen_model @@ -528,6 +602,7 @@ def main() -> None: AmdBr(), AmdDtlb(), AmdItlb(), + AmdLdSt(), AmdHwpf(), AmdSwpf(), AmdUpc(), --=20 2.51.2.1041.gc1ab5b90ca-goog