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linux/tools/perf/Documentation
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Kan Liang 6ea5d1a3e3 perf script: Support instruction latency 
The instruction latency information can be recorded on
some platforms, e.g., the Intel Sapphire Rapids server. With both memory
latency (weight) and the new instruction latency information, users can
easily locate the expensive load instructions, and also understand the time
spent in different stages. The users can optimize their applications in
different pipeline stages.

Add a new field "ins_lat" to filter the instruction latency information,
which is available with sample type PERF_SAMPLE_WEIGHT_STRUCT.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Link: https://lore.kernel.org/r/1632929894-102778-2-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-10-28 09:28:03 -03:00
..
android.txt
asciidoc.conf perf docs: Allow man page date to be specified 2019-09-27 09:26:14 -03:00
asciidoctor-extensions.rb perf Documentation: Support for asciidoctor 2018-04-26 13:47:10 -03:00
build-docdep.perl perf doc: Fix doc.dep 2021-08-02 09:56:17 -03:00
build-xed.txt perf script: Add --insn-trace for instruction decoding 2018-10-24 15:29:50 -03:00
Build.txt perf tools: Add doc about how to build perf with Asan and UBSan 2019-03-19 16:52:04 -03:00
callchain-overhead-calculation.txt
cat-texi.perl perf doc: Fix perfman.info build 2021-08-02 09:56:17 -03:00
db-export.txt perf db-export: Add brief documentation 2019-06-05 09:47:57 -03:00
examples.txt perf tools: Replace lkml.org links with lore 2021-02-11 12:54:27 -03:00
intel-bts.txt
intel-hybrid.txt perf docs: Fix accidental em-dashes 2021-08-10 11:05:21 -03:00
intel-pt.txt perf intel-pt: Update intel-pt.txt file with new location of the documentation 2020-03-11 11:00:33 -03:00
itrace.txt perf auxtrace: Add itrace d+o option to direct debug log to stdout 2021-10-27 16:20:45 -03:00
jit-interface.txt
jitdump-specification.txt perf doc: Fix typos all over the place 2021-09-27 09:32:28 -03:00
Makefile perf doc: Reorganize ARTICLES variables. 2021-08-02 09:56:18 -03:00
manpage-1.72.xsl
manpage-base.xsl
manpage-bold-literal.xsl
manpage-normal.xsl
manpage-suppress-sp.xsl
perf-annotate.txt perf annotate: Add itrace options support 2021-06-16 15:07:42 -03:00
perf-archive.txt
perf-bench.txt perf bench: Add basic syscall benchmark 2020-07-28 08:50:48 -03:00
perf-buildid-cache.txt perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
perf-buildid-list.txt
perf-c2c.txt perf doc: Fix typos all over the place 2021-09-27 09:32:28 -03:00
perf-config.txt perf intel-pt: Add a config for max loops without consuming a packet 2021-07-07 11:40:56 -03:00
perf-daemon.txt perf daemon: Add examples to man page 2021-02-11 10:19:52 -03:00
perf-data.txt perf data: Add JSON export 2021-04-29 10:30:58 -03:00
perf-diff.txt perf diff: Support hot streams comparison 2020-10-14 13:34:48 -03:00
perf-dlfilter.txt perf dlfilter: Amend documentation wrt library dependencies 2021-08-11 09:34:31 -03:00
perf-evlist.txt perf tools: Fix documentation of verbose options 2021-03-06 16:54:26 -03:00
perf-ftrace.txt perf tools: Fix documentation of verbose options 2021-03-06 16:54:26 -03:00
perf-help.txt
perf-inject.txt perf inject: Add --vm-time-correlation option 2021-05-12 12:43:10 -03:00
perf-intel-pt.txt perf intel-pt: Support itrace d+o option to direct debug log to stdout 2021-10-27 16:21:01 -03:00
perf-iostat.txt perf docs: Fix accidental em-dashes 2021-08-10 11:05:21 -03:00
perf-kallsyms.txt perf tools: Fix documentation of verbose options 2021-03-06 16:54:26 -03:00
perf-kmem.txt perf kmem: Improve man page for record options 2021-10-08 16:10:02 -03:00
perf-kvm.txt perf kvm: Clarify the 'perf kvm' -i and -o command line options 2019-12-02 15:38:59 -03:00
perf-list.txt perf list: Display hybrid PMU events with cpu type 2021-10-25 13:47:42 -03:00
perf-lock.txt perf doc: Fix typos all over the place 2021-09-27 09:32:28 -03:00
perf-mem.txt perf mem: Support data page size 2021-01-20 14:34:20 -03:00
perf-probe.txt perf probe: Add permission and sysctl notice to man page 2021-06-04 10:24:38 -03:00
perf-record.txt perf record: Add --synth option 2021-09-17 08:55:00 -03:00
perf-report.txt perf report: Add --skip-empty option to suppress 0 event stat 2021-04-29 10:30:59 -03:00
perf-sched.txt perf sched timehist: Add support for filtering on CPU 2020-01-06 11:46:09 -03:00
perf-script-perl.txt perf doc: Fix typos all over the place 2021-09-27 09:32:28 -03:00
perf-script-python.txt perf doc: Fix typos all over the place 2021-09-27 09:32:28 -03:00
perf-script.txt perf script: Support instruction latency 2021-10-28 09:28:03 -03:00
perf-stat.txt perf doc: Fix typos all over the place 2021-09-27 09:32:28 -03:00
perf-test.txt
perf-timechart.txt perf timechart: Document missing --force option 2017-11-16 14:50:06 -03:00
perf-top.txt perf top: Add cgroup support for perf top (-G) 2021-06-24 15:33:35 -03:00
perf-trace.txt perf tools: Fix documentation of verbose options 2021-03-06 16:54:26 -03:00
perf-version.txt perf version: Add man page 2018-04-02 13:52:23 -03:00
perf.data-directory-format.txt perf record: Put a copy of kcore into the perf.data directory 2019-11-06 15:43:05 -03:00
perf.data-file-format.txt perf header: Support HYBRID_CPU_PMU_CAPS feature 2021-05-17 10:58:10 -03:00
perf.txt perf docs: Add man pages to see also 2021-03-02 09:37:38 -03:00
perfconfig.example
security.txt perf docs: Introduce security.txt file to document related issues 2020-05-28 10:03:26 -03:00
tips.txt perf tools: Fix typos / broken sentences 2019-07-02 16:08:16 -03:00
topdown.txt perf doc: Fix typos all over the place 2021-09-27 09:32:28 -03:00