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5f0b89e632
Test case 'Test java symbol' might run for 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> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Ian Rogers <irogers@google.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Sumanth Korikkar <sumanthk@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Link: https://lore.kernel.org/r/20230509131847.835974-1-tmricht@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
75 lines
2 KiB
Bash
Executable file
75 lines
2 KiB
Bash
Executable file
#!/bin/bash
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# Test java symbol
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# SPDX-License-Identifier: GPL-2.0
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# Leo Yan <leo.yan@linaro.org>, 2022
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# skip if there's no jshell
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if ! [ -x "$(command -v jshell)" ]; then
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echo "skip: no jshell, install JDK"
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exit 2
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fi
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PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
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PERF_INJ_DATA=$(mktemp /tmp/__perf_test.perf.data.inj.XXXXX)
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cleanup_files()
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{
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echo "Cleaning up files..."
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rm -f ${PERF_DATA}
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rm -f ${PERF_INJ_DATA}
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}
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trap cleanup_files exit term int
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if [ -e "$PWD/tools/perf/libperf-jvmti.so" ]; then
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LIBJVMTI=$PWD/tools/perf/libperf-jvmti.so
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elif [ -e "$PWD/libperf-jvmti.so" ]; then
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LIBJVMTI=$PWD/libperf-jvmti.so
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elif [ -e "$PREFIX/lib64/libperf-jvmti.so" ]; then
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LIBJVMTI=$PREFIX/lib64/libperf-jvmti.so
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elif [ -e "$PREFIX/lib/libperf-jvmti.so" ]; then
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LIBJVMTI=$PREFIX/lib/libperf-jvmti.so
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elif [ -e "/usr/lib/linux-tools-$(uname -a | awk '{ print $3 }' | sed -r 's/-generic//')/libperf-jvmti.so" ]; then
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LIBJVMTI=/usr/lib/linux-tools-$(uname -a | awk '{ print $3 }' | sed -r 's/-generic//')/libperf-jvmti.so
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else
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echo "Fail to find libperf-jvmti.so"
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# JVMTI is a build option, skip the test if fail to find lib
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exit 2
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fi
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cat <<EOF | perf record -k 1 -o $PERF_DATA jshell -s -J-agentpath:$LIBJVMTI
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int fib(int x) {
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return x > 1 ? fib(x - 2) + fib(x - 1) : 1;
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}
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int q = 0;
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for (int i = 0; i < 10; i++)
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q += fib(i);
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System.out.println(q);
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EOF
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if [ $? -ne 0 ]; then
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echo "Fail to record for java program"
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exit 1
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fi
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if ! DEBUGINFOD_URLS='' perf inject -i $PERF_DATA -o $PERF_INJ_DATA -j; then
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echo "Fail to inject samples"
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exit 1
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fi
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# Below is an example of the instruction samples reporting:
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# 8.18% jshell jitted-50116-29.so [.] Interpreter
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# 0.75% Thread-1 jitted-83602-1670.so [.] jdk.internal.jimage.BasicImageReader.getString(int)
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perf report --stdio -i ${PERF_INJ_DATA} 2>&1 | \
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grep -E " +[0-9]+\.[0-9]+% .* (Interpreter|jdk\.internal).*" > /dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Fail to find java symbols"
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exit 1
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fi
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exit 0
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