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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> |
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| .. | ||
| android.txt | ||
| arm-coresight.txt | ||
| asciidoc.conf | ||
| asciidoctor-extensions.rb | ||
| build-docdep.perl | ||
| build-xed.txt | ||
| Build.txt | ||
| callchain-overhead-calculation.txt | ||
| cat-texi.perl | ||
| cpu-and-latency-overheads.txt | ||
| db-export.txt | ||
| examples.txt | ||
| guest-files.txt | ||
| guestmount.txt | ||
| intel-bts.txt | ||
| intel-hybrid.txt | ||
| intel-pt.txt | ||
| itrace.txt | ||
| jit-interface.txt | ||
| jitdump-specification.txt | ||
| Makefile | ||
| manpage-1.72.xsl | ||
| manpage-base.xsl | ||
| manpage-bold-literal.xsl | ||
| manpage-normal.xsl | ||
| manpage-suppress-sp.xsl | ||
| perf-amd-ibs.txt | ||
| perf-annotate.txt | ||
| perf-archive.txt | ||
| perf-arm-spe.txt | ||
| perf-bench.txt | ||
| perf-buildid-cache.txt | ||
| perf-buildid-list.txt | ||
| perf-c2c.txt | ||
| perf-check.txt | ||
| perf-config.txt | ||
| perf-daemon.txt | ||
| perf-data.txt | ||
| perf-diff.txt | ||
| perf-dlfilter.txt | ||
| perf-evlist.txt | ||
| perf-ftrace.txt | ||
| perf-help.txt | ||
| perf-inject.txt | ||
| perf-intel-pt.txt | ||
| perf-iostat.txt | ||
| perf-kallsyms.txt | ||
| perf-kmem.txt | ||
| perf-kvm.txt | ||
| perf-kwork.txt | ||
| perf-list.txt | ||
| perf-lock.txt | ||
| perf-mem.txt | ||
| perf-probe.txt | ||
| perf-record.txt | ||
| perf-report.txt | ||
| perf-sched.txt | ||
| perf-script-perl.txt | ||
| perf-script-python.txt | ||
| perf-script.txt | ||
| perf-stat.txt | ||
| perf-test.txt | ||
| perf-timechart.txt | ||
| perf-top.txt | ||
| perf-trace.txt | ||
| perf-version.txt | ||
| perf.data-directory-format.txt | ||
| perf.data-file-format.txt | ||
| perf.txt | ||
| perfconfig.example | ||
| security.txt | ||
| tips.txt | ||
| topdown.txt | ||