github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 01:53:29 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

perf test: Introduce script for java symbol testing

Browse Source 
This commit introduces a script for testing java symbols.

The test records java program, inject samples with JIT samples, check
specific JIT symbols in the report, the test will pass only when these
two symbols are detected.

Suggested-by: Ian Rogers <irogers@google.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220925025835.70364-3-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Leo Yan 2022-09-25 10:58:35 +08:00 committed by Arnaldo Carvalho de Melo
parent 0584439345
commit 1dc86fc731
1 changed files with 75 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
tools/perf/tests/shell/test_java_symbol.sh Executable file
View File

@ -0,0 +1,75 @@
#!/bin/bash
# Test java symbol
# SPDX-License-Identifier: GPL-2.0
# Leo Yan <leo.yan@linaro.org>, 2022
# skip if there's no jshell
if ! [ -x "$(command -v jshell)" ]; then
echo "skip: no jshell, install JDK"
exit 2
fi
PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
PERF_INJ_DATA=$(mktemp /tmp/__perf_test.perf.data.inj.XXXXX)
cleanup_files()
{
echo "Cleaning up files..."
rm -f ${PERF_DATA}
rm -f ${PERF_INJ_DATA}
}
trap cleanup_files exit term int
if [ -e "$PWD/tools/perf/libperf-jvmti.so" ]; then
LIBJVMTI=$PWD/tools/perf/libperf-jvmti.so
elif [ -e "$PWD/libperf-jvmti.so" ]; then
LIBJVMTI=$PWD/libperf-jvmti.so
elif [ -e "$PREFIX/lib64/libperf-jvmti.so" ]; then
LIBJVMTI=$PREFIX/lib64/libperf-jvmti.so
elif [ -e "$PREFIX/lib/libperf-jvmti.so" ]; then
LIBJVMTI=$PREFIX/lib/libperf-jvmti.so
elif [ -e "/usr/lib/linux-tools-$(uname -a | awk '{ print $3 }' | sed -r 's/-generic//')/libperf-jvmti.so" ]; then
LIBJVMTI=/usr/lib/linux-tools-$(uname -a | awk '{ print $3 }' | sed -r 's/-generic//')/libperf-jvmti.so
else
echo "Fail to find libperf-jvmti.so"
# JVMTI is a build option, skip the test if fail to find lib
exit 2
fi
cat <<EOF | perf record -k 1 -o $PERF_DATA jshell -s -J-agentpath:$LIBJVMTI
int fib(int x) {
return x > 1 ? fib(x - 2) + fib(x - 1) : 1;
}
int q = 0;
for (int i = 0; i < 10; i++)
q += fib(i);
System.out.println(q);
EOF
if [ $? -ne 0 ]; then
echo "Fail to record for java program"
exit 1
fi
if ! perf inject -i $PERF_DATA -o $PERF_INJ_DATA -j; then
echo "Fail to inject samples"
exit 1
fi
# Below is an example of the instruction samples reporting:
# 8.18% jshell jitted-50116-29.so [.] Interpreter
# 0.75% Thread-1 jitted-83602-1670.so [.] jdk.internal.jimage.BasicImageReader.getString(int)
perf report --stdio -i ${PERF_INJ_DATA} 2>&1 | \
egrep " +[0-9]+\.[0-9]+% .* (Interpreter|jdk\.internal).*" > /dev/null 2>&1
if [ $? -ne 0 ]; then
echo "Fail to find java symbols"
exit 1
fi
exit 0