From: Sandipan Das <sandipan.das@amd.com>
To: <linux-perf-users@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
"Alexander Shishkin" <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
"Kan Liang" <kan.liang@linux.intel.com>,
Stephane Eranian <eranian@google.com>,
Ravi Bangoria <ravi.bangoria@amd.com>,
Ananth Narayan <ananth.narayan@amd.com>,
Sandipan Das <sandipan.das@amd.com>
Subject: [PATCH 0/3] perf vendor events amd: Address event errata
Date: Wed, 7 May 2025 19:58:26 +0530 [thread overview]
Message-ID: <cover.1746627307.git.sandipan.das@amd.com> (raw)
Remove unreliable Zen 5 events and metrics. The following errata from
the Revision Guide for AMD Family 1Ah Models 00h-0Fh Processors have
been addressed.
#1569 PMCx078 Counts Incorrectly in Unpredictable Ways
#1583 PMCx18E May Overcount Instruction Cache Accesses
#1587 PMCx188 May Undercount IBS (Instruction Based Sampling) Fetch Events
The document can be downloaded from
https://bugzilla.kernel.org/attachment.cgi?id=308095
Sandipan Das (3):
perf vendor events amd: Remove Zen 5 instruction cache events
perf vendor events amd: Remove Zen 5 TLB flush event
perf vendor events amd: Remove Zen 5 IBS fetch event
.../arch/x86/amdzen5/inst-cache.json | 24 -------------------
.../arch/x86/amdzen5/load-store.json | 6 -----
.../arch/x86/amdzen5/recommended.json | 13 ----------
3 files changed, 43 deletions(-)
--
2.43.0
next reply other threads:[~2025-05-07 14:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-07 14:28 Sandipan Das [this message]
2025-05-07 14:28 ` [PATCH 1/3] perf vendor events amd: Remove Zen 5 instruction cache events Sandipan Das
2025-05-07 14:28 ` [PATCH 2/3] perf vendor events amd: Remove Zen 5 TLB flush event Sandipan Das
2025-05-07 14:28 ` [PATCH 3/3] perf vendor events amd: Remove Zen 5 IBS fetch event Sandipan Das
2025-05-07 15:56 ` [PATCH 0/3] perf vendor events amd: Address event errata Ian Rogers
2025-05-08 10:56 ` Sandipan Das
2025-05-08 15:34 ` Ian Rogers
2025-05-09 8:40 ` Sandipan Das
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