Messages in this thread | | | From | Ian Rogers <> | Date | Tue, 9 May 2023 10:34:44 -0700 | Subject | Re: [PATCH] perf/test: reduce run time of perf test Test java symbol |
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On Tue, May 9, 2023 at 6:19 AM Thomas Richter <tmricht@linux.ibm.com> wrote: > > Test case Test java symbol might run a long time. On Fedora 38 the > run time is very, very long: > > Output before: > # time ./perf test 108 > 108: Test java symbol : Ok > real 22m15.775s > user 3m42.584s > sys 4m30.685s > # > > The reason is a lookup for the server for debug symbols as shown in > # cat /etc/debuginfod/elfutils.urls > https://debuginfod.fedoraproject.org/ > # > This lookup is done for every symbol/sample, so about 3500 lookups > will take place. > To omit this lookup, which is not needed, unset environment variable > DEBUGINFOD_URLS=''. > > Output after: > # time ./perf test 108 > 108: Test java symbol : Ok > > real 0m6.242s > user 0m4.982s > sys 0m3.243s > # > > Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> > Cc: leo.yan@linaro.org > Cc: irogers@google.com > --- > tools/perf/tests/shell/test_java_symbol.sh | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/perf/tests/shell/test_java_symbol.sh b/tools/perf/tests/shell/test_java_symbol.sh > index 90cea8811926..499539d1c479 100755 > --- a/tools/perf/tests/shell/test_java_symbol.sh > +++ b/tools/perf/tests/shell/test_java_symbol.sh > @@ -56,7 +56,7 @@ if [ $? -ne 0 ]; then > exit 1 > fi > > -if ! perf inject -i $PERF_DATA -o $PERF_INJ_DATA -j; then > +if ! DEBUGINFOD_URLS='' perf inject -i $PERF_DATA -o $PERF_INJ_DATA -j; then
Jiri, is this the best way to workaround a debuginfod slowness?
Thanks, Ian
> echo "Fail to inject samples" > exit 1 > fi > -- > 2.40.0 >
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