Messages in this thread | | | From | Jin Yao <> | Subject | [PATCH v3 0/4] perf: Support a new 'percore' event qualifier | Date | Tue, 19 Mar 2019 16:56:52 +0800 |
| |
The 'percore' event qualifier which sums up the event counts for both hardware threads in a core. For example,
perf stat -e cpu/event=0,umask=0x3,percore=1/,cpu/event=0,umask=0x3/
In this example, we count the event 'ref-cycles' per-core and per-CPU in one perf stat command-line.
We can already support per-core counting with --per-core, but it's often useful to do this together with other metrics that are collected per CPU (per hardware thread). So this patch series supports this per-core counting on a event level.
v3: --- Simplify the patch: "perf: Add a 'percore' event qualifier" Other patches don't have changes.
v2: --- 1. Change 'coresum' to 'percore'. 2. Move the aggregate counts printing to a seperate patch.
Jin Yao (4): perf: Add a 'percore' event qualifier perf stat: Factor out aggregate counts printing perf stat: Support 'percore' event qualifier perf test: Add a simple test for term 'percore'
tools/perf/Documentation/perf-stat.txt | 4 ++ tools/perf/builtin-stat.c | 21 +++++++ tools/perf/tests/parse-events.c | 10 ++- tools/perf/util/evsel.c | 2 + tools/perf/util/evsel.h | 3 + tools/perf/util/parse-events.c | 27 +++++++++ tools/perf/util/parse-events.h | 1 + tools/perf/util/parse-events.l | 1 + tools/perf/util/stat-display.c | 108 ++++++++++++++++++++++++--------- tools/perf/util/stat.c | 8 ++- 10 files changed, 151 insertions(+), 34 deletions(-)
-- 2.7.4
| |