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4ea0be1f0d
When perf stat is called with very detailed events, the output doesn't
align well like below:
$ sudo perf stat -a -ddd sleep 1
Performance counter stats for 'system wide':
8,020.23 msec cpu-clock # 7.997 CPUs utilized
3,970 context-switches # 494.998 /sec
169 cpu-migrations # 21.072 /sec
586 page-faults # 73.065 /sec
649,568,060 cycles # 0.081 GHz (30.42%)
304,044,345 instructions # 0.47 insn per cycle (38.40%)
60,313,022 branches # 7.520 M/sec (38.89%)
2,766,919 branch-misses # 4.59% of all branches (39.26%)
74,422,951 L1-dcache-loads # 9.279 M/sec (39.39%)
8,025,568 L1-dcache-load-misses # 10.78% of all L1-dcache accesses (39.22%)
3,314,995 LLC-loads # 413.329 K/sec (30.83%)
1,225,619 LLC-load-misses # 36.97% of all LL-cache accesses (30.45%)
<not supported> L1-icache-loads
20,420,493 L1-icache-load-misses # 0.00% of all L1-icache accesses (30.29%)
58,017,947 dTLB-loads # 7.234 M/sec (30.37%)
704,677 dTLB-load-misses # 1.21% of all dTLB cache accesses (30.27%)
234,225 iTLB-loads # 29.204 K/sec (30.29%)
417,166 iTLB-load-misses # 178.10% of all iTLB cache accesses (30.32%)
<not supported> L1-dcache-prefetches
<not supported> L1-dcache-prefetch-misses
1.002947355 seconds time elapsed
Increase the METRIC_LEN by 3 so that it can align properly.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221107213314.3239159-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.