Namhyung Kim f6027053f8 perf lock contention: Add --output option ... To avoid formatting failures for example in CSV output due to debug messages, add --output option to put the result in a file. Unfortunately the short -o option was taken by the --owner already. $ sudo ./perf lock con -ab --output lock-out.txt -v sleep 1 Looking at the vmlinux_path (8 entries long) symsrc__init: cannot get elf header. Using /proc/kcore for kernel data Using /proc/kallsyms for symbols $ head lock-out.txt contended total wait max wait avg wait type caller 3 76.79 us 26.89 us 25.60 us rwlock:R ep_poll_callback+0x2d 0xffffffff9a23f4b5 _raw_read_lock_irqsave+0x45 0xffffffff99bbd4dd ep_poll_callback+0x2d 0xffffffff999029f3 __wake_up_common+0x73 0xffffffff99902b82 __wake_up_common_lock+0x82 0xffffffff99fa5b1c sock_def_readable+0x3c 0xffffffff9a11521d unix_stream_sendmsg+0x18d 0xffffffff99f9fc9c sock_sendmsg+0x5c Suggested-by: Ian Rogers <irogers@google.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Hao Luo <haoluo@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Song Liu <song@kernel.org> Link: https://lore.kernel.org/r/20230628200141.2739587-4-namhyung@kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org>		2023-07-01 10:48:48 -07:00
..
android.txt	perf tools: Update android build documentation	2016-07-04 20:27:27 -03:00
arm-coresight.txt	perf docs: Fix man page build wrt perf-arm-coresight.txt	2022-10-25 17:40:48 -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-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	perf tools: Document --children option in more detail	2015-04-29 10:38:06 -03:00
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
guest-files.txt	perf tools: Tidy guest option documentation	2022-08-11 18:50:17 -03:00
guestmount.txt	perf tools: Tidy guest option documentation	2022-08-11 18:50:17 -03:00
intel-bts.txt	perf tools: Add Intel BTS support	2015-08-21 11:34:10 -03:00
intel-hybrid.txt	perf record: Fix manpage formatting of description of support to hybrid systems	2022-08-27 11:55:17 -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 intel-pt: Synthesize cycle events	2023-02-17 11:02:44 -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: Add support for KBUILD_BUILD_TIMESTAMP	2023-05-15 17:49:01 -03:00
manpage-1.72.xsl
manpage-base.xsl
manpage-bold-literal.xsl
manpage-normal.xsl
manpage-suppress-sp.xsl
perf-annotate.txt	perf symbol: Add command line support for addr2line path	2023-04-04 09:39:56 -03:00
perf-archive.txt
perf-arm-spe.txt	perf docs: Add man page entry for Arm SPE	2022-04-14 08:54:03 -03:00
perf-bench.txt	perf: Various spelling fixes	2023-01-23 10:00:47 -03:00
perf-buildid-cache.txt	perf record: Disable debuginfod by default	2022-01-15 17:41:25 -03:00
perf-buildid-list.txt	perf buildid-list: Add a "-m" option to show kernel and modules build-ids	2022-07-18 16:35:34 -03:00
perf-c2c.txt	perf c2c: Add report option to show false sharing in adjacent cachelines	2023-02-16 09:33:45 -03:00
perf-config.txt	perf: Replace deprecated -target with --target= for Clang	2023-06-27 12:13:22 -07:00
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 tools: Make quiet mode consistent between tools	2022-10-27 16:37:26 -03:00
perf-dlfilter.txt	perf dlfilter: Add machine_pid and vcpu	2022-07-20 11:08:13 -03:00
perf-evlist.txt	perf tools: Fix documentation of verbose options	2021-03-06 16:54:26 -03:00
perf-ftrace.txt	perf ftrace latency: Update documentation	2022-03-22 17:45:39 -03:00
perf-help.txt
perf-inject.txt	perf inject: Clarify build-id options a little bit	2022-10-04 08:55:22 -03:00
perf-intel-pt.txt	perf intel-pt: Synthesize cycle events	2023-02-17 11:02:44 -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: Update documentation to reflect new changes	2023-03-15 16:53:43 -03:00
perf-kwork.txt	perf kwork: Implement BPF trace	2022-07-26 16:31:54 -03:00
perf-list.txt	perf tools docs: Use canonical ftrace path	2023-02-02 16:32:19 -03:00
perf-lock.txt	perf lock contention: Add --output option	2023-07-01 10:48:48 -07:00
perf-mem.txt	perf mem/c2c: Document that SPE is used for mem and c2c on ARM	2023-01-27 15:00:34 -03:00
perf-probe.txt	perf docs: Fix a typo in 'perf probe' man page: l20th -> 120th	2023-01-19 09:49:59 -03:00
perf-record.txt	perf record: Update documentation for BPF filters	2023-03-15 11:08:36 -03:00
perf-report.txt	perf symbol: Add command line support for addr2line path	2023-04-04 09:39:56 -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 docs: Use canonical ftrace path	2023-02-02 16:32:19 -03:00
perf-script-python.txt	perf tools docs: Use canonical ftrace path	2023-02-02 16:32:19 -03:00
perf-script.txt	perf script: Add new output field 'dsoff' to print dso offset	2023-05-12 15:21:49 -03:00
perf-stat.txt	perf stat: Document --metric-no-threshold and threshold colors	2023-06-05 16:04:14 -03:00
perf-test.txt	perf test: Add Symbols test	2023-01-22 18:09:56 -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 --branch-history option	2023-04-04 09:39:56 -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: Record non-CPU PMU capabilities	2022-06-24 13:18:55 -03:00
perf.txt	perf docs: Add man page entry for Arm SPE	2022-04-14 08:54:03 -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 doc: Refresh topdown documentation	2023-02-19 08:10:15 -03:00