From: Ian Rogers <irogers@google.com>
To: perry.taylor@intel.com, caleb.biggers@intel.com,
kshipra.bopardikar@intel.com,
Kan Liang <kan.liang@linux.intel.com>,
Zhengjun Xing <zhengjun.xing@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Andi Kleen <ak@linux.intel.com>,
James Clark <james.clark@arm.com>,
John Garry <john.garry@huawei.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org
Cc: Stephane Eranian <eranian@google.com>, Ian Rogers <irogers@google.com>
Subject: [PATCH v3 0/2] Add arch TSC frequency information
Date: Fri, 15 Jul 2022 15:35:19 -0700 [thread overview]
Message-ID: <20220715223521.3389971-1-irogers@google.com> (raw)
The first patch adds support for deriving from /proc/cpuinfo and adds
tests. The second patch from Kan Liang derives it from CPUID available
on newer Intel processors as discussed here:
https://lore.kernel.org/lkml/20220527040407.4193232-1-irogers@google.com/#t
v2. Adds warnings to make clear if things have changed/broken on future
Intel platforms. It also adds caching and an Intel specific that a
value is computed.
Ian Rogers (1):
perf metrics: Add literal for system TSC frequency
Kan Liang (1):
perf tsc: Add arch TSC frequency information
tools/perf/arch/x86/util/cpuid.h | 34 +++++++++++++++++
tools/perf/arch/x86/util/header.c | 27 ++++++--------
tools/perf/arch/x86/util/tsc.c | 33 ++++++++++++++++
tools/perf/tests/expr.c | 15 ++++++++
tools/perf/util/expr.c | 62 +++++++++++++++++++++++++++++++
tools/perf/util/tsc.h | 1 +
6 files changed, 156 insertions(+), 16 deletions(-)
create mode 100644 tools/perf/arch/x86/util/cpuid.h
--
2.37.0.170.g444d1eabd0-goog
next reply other threads:[~2022-07-15 22:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-15 22:35 Ian Rogers [this message]
2022-07-15 22:35 ` [PATCH v3 1/2] perf metrics: Add literal for system TSC frequency Ian Rogers
2022-07-18 12:14 ` Liang, Kan
2022-07-15 22:35 ` [PATCH v3 2/2] perf tsc: Add arch TSC frequency information Ian Rogers
2022-07-18 12:49 ` Liang, Kan
2022-07-18 14:47 ` Ian Rogers
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220715223521.3389971-1-irogers@google.com \
--to=irogers@google.com \
--cc=acme@kernel.org \
--cc=ak@linux.intel.com \
--cc=alexander.shishkin@linux.intel.com \
--cc=alexandre.torgue@foss.st.com \
--cc=caleb.biggers@intel.com \
--cc=eranian@google.com \
--cc=james.clark@arm.com \
--cc=john.garry@huawei.com \
--cc=jolsa@redhat.com \
--cc=kan.liang@linux.intel.com \
--cc=kshipra.bopardikar@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mcoquelin.stm32@gmail.com \
--cc=mingo@redhat.com \
--cc=namhyung@kernel.org \
--cc=perry.taylor@intel.com \
--cc=peterz@infradead.org \
--cc=zhengjun.xing@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).