Adrian Hunter b4b046ff9e perf intel-pt: Add a config for max loops without consuming a packet ... The Intel PT decoder limits the number of unconditional branches (e.g. jmps) decoded without consuming any trace packets. Generally, a loop needs a conditional branch which generates a TNT packet, whereas a "ret" instruction will generate a TIP or TNT packet. So exceeding the limit is assumed to be a never-ending loop, which can happen if there has been a decoding error putting the decoder at the wrong place in the code. Up until now, the limit of 10000 has been enough but some analytic purposes have been reported to exceed that. Increase the limit to 100000, and make it configurable via perf config intel-pt.max-loops. Also amend the "Never-ending loop" message to mention the configuration entry. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20210701175132.3977-1-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2021-07-07 11:40:56 -03:00
..
android.txt	perf tools: Update android build documentation	2016-07-04 20:27:27 -03:00
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-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 tools: Replace lkml.org links with lore	2021-02-11 12:54:27 -03:00
intel-bts.txt	perf tools: Add Intel BTS support	2015-08-21 11:34:10 -03:00
intel-hybrid.txt	perf Documentation: Document intel-hybrid support	2021-04-29 10:31:00 -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 Z itrace option for timeless decoding	2021-05-12 12:43:10 -03:00
jit-interface.txt
jitdump-specification.txt	perf docs: Correct and clarify jitdump spec	2019-09-30 17:29:51 -03:00
Makefile	perf doc: allow ASCIIDOC_EXTRA to be an argument	2020-04-18 09:05:00 -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 c2c: Update documentation for metrics reorganization	2020-10-15 12:02:12 -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: Add object_code() to perf_dlfilter_fns	2021-07-01 16:14:38 -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 scripting python: intel-pt-events.py: Add --insn-trace and --src-trace	2021-06-01 10:05:20 -03:00
perf-iostat.txt	perf stat: Enable iostat mode for x86 platforms	2021-04-20 08:40:20 -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: Document a missing option & an argument	2018-02-16 14:55:42 -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 tools: Add support for exclusive groups/events	2020-10-14 12:24:28 -03:00
perf-lock.txt	perf lock: Document missing options	2017-11-16 14:50:04 -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 Documentation: Document intel-hybrid support	2021-04-29 10:31:00 -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 tools: Correct title markers for asciidoctor	2018-03-07 10:26:32 -03:00
perf-script-python.txt	perf scripting python: Update documentation for srcline etc	2021-06-01 10:04:57 -03:00
perf-script.txt	perf script: Add option to pass arguments to dlfilters	2021-07-01 16:14:37 -03:00
perf-stat.txt	perf Documentation: Document intel-hybrid support	2021-04-29 10:31:00 -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 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	perf config: Show default report configuration in example and docs	2016-09-01 09:44:13 -03:00
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 tools: Update topdown documentation to permit rdpmc calls	2021-04-22 16:09:39 -03:00