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| author | Jiri Olsa <jolsa@redhat.com> | 2021-12-09 21:04:25 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-01-15 17:41:25 -0300 |
| commit | 9bce13ea88f85344b765abe5d3dabdd0f44dc177 (patch) | |
| tree | 16fcc617e623265b3cec14e11be83aaf92ff0145 /tools/perf/Documentation/perf-buildid-cache.txt | |
| parent | 2eea0b56b0d6ace0172550477220a25d633ec5b9 (diff) | |
| download | linux-9bce13ea88f85344b765abe5d3dabdd0f44dc177.tar.bz2 | |
perf record: Disable debuginfod by default
Fedora 35 sets DEBUGINFOD_URLS by default, which might lead to
unexpected stalls in perf record exit path, when we try to cache
profiled binaries.
# DEBUGINFOD_PROGRESS=1 ./perf record -a
^C[ perf record: Woken up 1 times to write data ]
Downloading from https://debuginfod.fedoraproject.org/ 447069
Downloading from https://debuginfod.fedoraproject.org/ 1502175
Downloading \^Z
Disabling DEBUGINFOD_URLS by default in perf record and adding
debuginfod option and .perfconfig variable support to enable id.
Default without debuginfo processing:
# perf record -a
Using system debuginfod setup:
# perf record -a --debuginfod
Using custom debuginfd url:
# perf record -a --debuginfod='https://evenbetterdebuginfodserver.krava'
Adding single perf_debuginfod_setup function and using
it also in perf buildid-cache command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20211209200425.303561-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-buildid-cache.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-buildid-cache.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-buildid-cache.txt b/tools/perf/Documentation/perf-buildid-cache.txt index cd8ce6e8ec12..7e44b419d301 100644 --- a/tools/perf/Documentation/perf-buildid-cache.txt +++ b/tools/perf/Documentation/perf-buildid-cache.txt @@ -74,12 +74,15 @@ OPTIONS used when creating a uprobe for a process that resides in a different mount namespace from the perf(1) utility. ---debuginfod=URLs:: +--debuginfod[=URLs]:: Specify debuginfod URL to be used when retrieving perf.data binaries, it follows the same syntax as the DEBUGINFOD_URLS variable, like: buildid-cache.debuginfod=http://192.168.122.174:8002 + If the URLs is not specified, the value of DEBUGINFOD_URLS + system environment variable is used. + SEE ALSO -------- linkperf:perf-record[1], linkperf:perf-report[1], linkperf:perf-buildid-list[1] |