Ian Rogers 53b00ff358 perf record: Make --buildid-mmap the default ... Support for build IDs in mmap2 perf events has been present since Linux v5.12: https://lore.kernel.org/lkml/20210219194619.1780437-1-acme@kernel.org/ Build ID mmap events don't avoid the need to inject build IDs for DSO touched by samples as the build ID cache is populated by perf record. They can avoid some cases of symbol mis-resolution caused by the file system changing from when a sample occurred and when the DSO is sought. Unlike the --buildid-mmap option, this chnage doesn't disable the build ID cache but it does disable the processing of samples looking for DSOs to inject build IDs for. To disable the build ID cache the -B (--no-buildid) option should be used. Making this option the default was raised on the list in: https://lore.kernel.org/linux-perf-users/CAP-5=fXP7jN_QrGUcd55_QH5J-Y-FCaJ6=NaHVtyx0oyNh8_-Q@mail.gmail.com/ Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-9-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>		2025-07-25 10:37:56 -07:00
..
android.txt
arm-coresight.txt	perf docs: Fix man page build wrt perf-arm-coresight.txt	2022-10-25 17:40:48 -03:00
asciidoc.conf
asciidoctor-extensions.rb
build-docdep.perl	perf doc: Fix doc.dep	2021-08-02 09:56:17 -03:00
build-xed.txt
Build.txt	perf docs: Document cross compilation	2024-07-26 11:15:55 -07:00
callchain-overhead-calculation.txt	perf report: Add latency and parallelism profiling documentation	2025-02-18 14:04:32 -08:00
cat-texi.perl	perf doc: Fix perfman.info build	2021-08-02 09:56:17 -03:00
cpu-and-latency-overheads.txt	perf report: Add latency and parallelism profiling documentation	2025-02-18 14:04:32 -08:00
db-export.txt
examples.txt
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
intel-hybrid.txt	perf tools: Fix up some comments and code to properly use the event_source bus	2025-02-19 13:23:43 -08:00
intel-pt.txt
itrace.txt	perf arm-spe: Update --itrace help text	2024-10-29 16:10:17 -07:00
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-amd-ibs.txt	perf mem: Document new output fields (op, cache, mem, dtlb, snoop)	2025-06-16 14:05:10 -03:00
perf-annotate.txt	perf annotate: Add --code-with-type option.	2025-03-13 00:19:51 -07:00
perf-archive.txt
perf-arm-spe.txt	perf docs: arm_spe: Document new discard mode	2025-01-10 14:50:55 +00:00
perf-bench.txt	perf bench sched pipe: Add -G/--cgroups option	2023-10-25 10:02:10 -07:00
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 mem/c2c amd: Add ldlat support	2025-04-29 22:30:46 -03:00
perf-check.txt	tools: Remove libcrypto dependency	2025-06-26 10:51:41 -07:00
perf-config.txt	perf intel-pt: Do not default to recording all switch events	2025-05-12 14:18:16 -03:00
perf-daemon.txt
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 al_cleanup()	2023-08-15 16:41:49 -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: add graph tracer options args/retval/retval-hex/retaddr	2025-07-22 17:47:22 -07:00
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: Add documentation for pause / resume	2024-12-18 16:24:32 -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 docs: Refine the description for the buffer size	2024-08-12 13:59:22 -03:00
perf-kwork.txt	perf docs: Fix typos	2024-05-28 22:52:28 -07:00
perf-list.txt	perf parse-events: Allow the cpu term to be a PMU or CPU range	2025-07-24 13:41:35 -07:00
perf-lock.txt	perf lock contention: Reject more than 10ms delays for safety	2025-05-31 08:45:24 -03:00
perf-mem.txt	perf mem: Document new output fields (op, cache, mem, dtlb, snoop)	2025-06-16 14:05:10 -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: Make --buildid-mmap the default	2025-07-25 10:37:56 -07:00
perf-report.txt	perf report: Add 'tgid' sort key	2025-05-13 17:51:32 -03:00
perf-sched.txt	perf sched timehist: Add pre-migration wait time option	2024-10-14 12:04:31 -07:00
perf-script-perl.txt	perf tools docs: Use canonical ftrace path	2023-02-02 16:32:19 -03:00
perf-script-python.txt	perf scripting python: Add function to get a config value	2024-09-24 11:47:03 -07:00
perf-script.txt	perf script: Update brstack syntax documentation	2025-03-14 10:41:08 -07:00
perf-stat.txt	perf stat: Fix uncore aggregation number	2025-06-27 16:14:10 -07:00
perf-test.txt	perf test: Improve verbose documentation	2025-01-16 11:01:03 -08:00
perf-timechart.txt
perf-top.txt	perf docs: Refine the description for the buffer size	2024-08-12 13:59:22 -03:00
perf-trace.txt	perf trace: Remove --map-dump documentation	2025-06-09 11:18:19 -07:00
perf-version.txt
perf.data-directory-format.txt
perf.data-file-format.txt	perf record: Add 8-byte aligned event type PERF_RECORD_COMPRESSED2	2025-05-16 17:31:40 -03:00
perf.txt	perf doc: Add AMD IBS usage document	2024-06-20 16:51:55 -07:00
perfconfig.example
security.txt
tips.txt	perf report: Add latency and parallelism profiling documentation	2025-02-18 14:04:32 -08:00
topdown.txt	perf Document: Add TPEBS (Timed PEBS(Precise Event-Based Sampling)) to Documents	2024-08-13 15:25:33 -03:00