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acae8b36cd
linux/tools/perf/Documentation
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Kan Liang acae8b36cd perf header: Add die information in CPU topology 
With the new CPUID.1F, a new level type of CPU topology, 'die', is
introduced. The 'die' information in CPU topology should be added in
perf header.

To be compatible with old perf.data, the patch checks the section size
before reading the die information. The new info is added at the end of
the cpu_topology section, the old perf tool ignores the extra data.  It
never reads data crossing the section boundary.

The new perf tool with the patch can be used on legacy kernel. Add a new
function has_die_topology() to check if die topology information is
supported by kernel. The function only check X86 and CPU 0. Assuming
other CPUs have same topology.

Use similar method for core and socket to support die id and sibling
dies string.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1559688644-106558-2-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-06-10 15:50:02 -03:00
..
android.txt perf tools: Update android build documentation 2016-07-04 20:27:27 -03:00
asciidoc.conf
asciidoctor-extensions.rb perf Documentation: Support for asciidoctor 2018-04-26 13:47:10 -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 perf tools: Document --children option in more detail 2015-04-29 10:38:06 -03:00
db-export.txt perf db-export: Add brief documentation 2019-06-05 09:47:57 -03:00
examples.txt perf record: Remove -f/--force option 2013-07-08 17:37:25 -03:00
intel-bts.txt perf tools: Add Intel BTS support 2015-08-21 11:34:10 -03:00
intel-pt.txt perf intel-pt: Document IPC usage 2019-06-05 09:47:57 -03:00
itrace.txt perf script: Make itrace script default to all calls 2018-10-24 15:29:54 -03:00
jit-interface.txt
jitdump-specification.txt perf jit: Add jitdump format specification document 2016-10-24 11:07:41 -03:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
manpage-1.72.xsl
manpage-base.xsl
manpage-bold-literal.xsl
manpage-normal.xsl
manpage-suppress-sp.xsl
perf-annotate.txt perf annotate: Add --percent-type option 2018-08-08 15:55:53 -03:00
perf-archive.txt perf archive: Remove duplicated 'runs' in man page 2013-12-09 15:21:45 -03:00
perf-bench.txt perf bench: Add epoll_ctl(2) benchmark 2018-11-21 22:39:55 -03:00
perf-buildid-cache.txt perf buildid-cache: Support --purge-all option 2018-04-26 09:30:26 -03:00
perf-buildid-list.txt
perf-c2c.txt perf mem/c2c: Fix perf_mem_events to support powerpc 2019-02-04 11:32:14 -03:00
perf-config.txt perf config: Fix an error in the config template documentation 2019-03-19 16:52:04 -03:00
perf-data.txt perf tools: Correct title markers for asciidoctor 2018-03-07 10:26:32 -03:00
perf-diff.txt perf diff: Support --pid/--tid filter options 2019-03-06 18:06:16 -03:00
perf-evlist.txt perf evlist: Document missing --force option 2017-11-16 14:50:07 -03:00
perf-ftrace.txt perf tools: Correct title markers for asciidoctor 2018-03-07 10:26:32 -03:00
perf-help.txt
perf-inject.txt perf inject: Document missing options 2017-11-16 14:50:05 -03:00
perf-kallsyms.txt perf tools: Correct title markers for asciidoctor 2018-03-07 10:26:32 -03:00
perf-kmem.txt perf kmem: Document a missing option & an argument 2018-02-16 14:55:42 -03:00
perf-kvm.txt perf tools: Configurable per thread proc map processing time out 2015-06-19 18:27:13 -03:00
perf-list.txt perf tools: Add a 'percore' event qualifier 2019-05-16 14:17:24 -03:00
perf-lock.txt perf lock: Document missing options 2017-11-16 14:50:04 -03:00
perf-mem.txt perf mem/c2c: Fix perf_mem_events to support powerpc 2019-02-04 11:32:14 -03:00
perf-probe.txt perf probe: Support escaped character in parser 2017-12-27 12:15:55 -03:00
perf-record.txt perf record: Add support to collect callchains from kernel or user space only 2019-06-10 15:50:01 -03:00
perf-report.txt perf report: Implement browsing of individual samples 2019-03-11 16:33:19 -03:00
perf-sched.txt perf sched: Fix documentation for timehist 2018-04-12 10:33:36 -03:00
perf-script-perl.txt perf tools: Correct title markers for asciidoctor 2018-03-07 10:26:32 -03:00
perf-script-python.txt perf script python: Add dict fields introduction to Documentation 2018-06-06 15:40:10 -03:00
perf-script.txt perf script: Add output of IPC ratio 2019-06-05 09:47:56 -03:00
perf-stat.txt perf stat: Support 'percore' event qualifier 2019-05-16 14:17:24 -03:00
perf-test.txt perf test: Add -F/--dont-fork option 2016-06-30 18:27:45 -03:00
perf-timechart.txt perf timechart: Document missing --force option 2017-11-16 14:50:06 -03:00
perf-top.txt perf top: Add --namespaces option 2019-05-28 18:37:43 -03:00
perf-trace.txt perf trace: Allow dumping a BPF map after setting up BPF events 2019-02-19 16:35:45 -03:00
perf-version.txt perf version: Add man page 2018-04-02 13:52:23 -03:00
perf.data-file-format.txt perf header: Add die information in CPU topology 2019-06-10 15:50:02 -03:00
perf.txt perf docs: Add description for stderr 2019-05-16 14:17:24 -03:00
perfconfig.example perf config: Show default report configuration in example and docs 2016-09-01 09:44:13 -03:00
tips.txt perf tools: Add some new tips describing the new options 2019-03-11 16:33:19 -03:00