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6ed249441a
Output events and metrics in a JSON format by overriding the print
callbacks. Currently other command line options aren't supported and
metrics are repeated once per metric group.
Committer testing:
$ perf list cache
List of pre-defined events (to be used in -e or -M):
L1-dcache-load-misses [Hardware cache event]
L1-dcache-loads [Hardware cache event]
L1-dcache-prefetches [Hardware cache event]
L1-icache-load-misses [Hardware cache event]
L1-icache-loads [Hardware cache event]
branch-load-misses [Hardware cache event]
branch-loads [Hardware cache event]
dTLB-load-misses [Hardware cache event]
dTLB-loads [Hardware cache event]
iTLB-load-misses [Hardware cache event]
iTLB-loads [Hardware cache event]
$ perf list --json cache
[
{
"Unit": "cache",
"EventName": "L1-dcache-load-misses",
"EventType": "Hardware cache event"
},
{
"Unit": "cache",
"EventName": "L1-dcache-loads",
"EventType": "Hardware cache event"
},
{
"Unit": "cache",
"EventName": "L1-dcache-prefetches",
"EventType": "Hardware cache event"
},
{
"Unit": "cache",
"EventName": "L1-icache-load-misses",
"EventType": "Hardware cache event"
},
{
"Unit": "cache",
"EventName": "L1-icache-loads",
"EventType": "Hardware cache event"
},
{
"Unit": "cache",
"EventName": "branch-load-misses",
"EventType": "Hardware cache event"
},
{
"Unit": "cache",
"EventName": "branch-loads",
"EventType": "Hardware cache event"
},
{
"Unit": "cache",
"EventName": "dTLB-load-misses",
"EventType": "Hardware cache event"
},
{
"Unit": "cache",
"EventName": "dTLB-loads",
"EventType": "Hardware cache event"
},
{
"Unit": "cache",
"EventName": "iTLB-load-misses",
"EventType": "Hardware cache event"
},
{
"Unit": "cache",
"EventName": "iTLB-loads",
"EventType": "Hardware cache event"
}
]
$
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Xin Gao <gaoxin@cdjrlc.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: http://lore.kernel.org/lkml/20221114210723.2749751-11-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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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.