tools/perf/tests/shell/test_java_symbol.sh

   1 #!/bin/bash
   2 # Test java symbol
   3
   4 # SPDX-License-Identifier: GPL-2.0
   5 # Leo Yan <leo.yan@linaro.org>, 2022
   6
   7 # skip if there's no jshell
   8 if ! [ -x "$(command -v jshell)" ]; then
   9         echo "skip: no jshell, install JDK"
  10         exit 2
  11 fi
  12
  13 PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
  14 PERF_INJ_DATA=$(mktemp /tmp/__perf_test.perf.data.inj.XXXXX)
  15
  16 cleanup_files()
  17 {
  18         echo "Cleaning up files..."
  19         rm -f ${PERF_DATA}
  20         rm -f ${PERF_INJ_DATA}
  21 }
  22
  23 trap cleanup_files exit term int
  24
  25 if [ -e "$PWD/tools/perf/libperf-jvmti.so" ]; then
  26         LIBJVMTI=$PWD/tools/perf/libperf-jvmti.so
  27 elif [ -e "$PWD/libperf-jvmti.so" ]; then
  28         LIBJVMTI=$PWD/libperf-jvmti.so
  29 elif [ -e "$PREFIX/lib64/libperf-jvmti.so" ]; then
  30         LIBJVMTI=$PREFIX/lib64/libperf-jvmti.so
  31 elif [ -e "$PREFIX/lib/libperf-jvmti.so" ]; then
  32         LIBJVMTI=$PREFIX/lib/libperf-jvmti.so
  33 elif [ -e "/usr/lib/linux-tools-$(uname -a | awk '{ print $3 }' | sed -r 's/-generic//')/libperf-jvmti.so" ]; then
  34         LIBJVMTI=/usr/lib/linux-tools-$(uname -a | awk '{ print $3 }' | sed -r 's/-generic//')/libperf-jvmti.so
  35 else
  36         echo "Fail to find libperf-jvmti.so"
  37         # JVMTI is a build option, skip the test if fail to find lib
  38         exit 2
  39 fi
  40
  41 cat <<EOF | perf record -k 1 -o $PERF_DATA jshell -s -J-agentpath:$LIBJVMTI
  42 int fib(int x) {
  43         return x > 1 ? fib(x - 2) + fib(x - 1) : 1;
  44 }
  45
  46 int q = 0;
  47
  48 for (int i = 0; i < 10; i++)
  49         q += fib(i);
  50
  51 System.out.println(q);
  52 EOF
  53
  54 if [ $? -ne 0 ]; then
  55         echo "Fail to record for java program"
  56         exit 1
  57 fi
  58
  59 if ! DEBUGINFOD_URLS='' perf inject -i $PERF_DATA -o $PERF_INJ_DATA -j; then
  60         echo "Fail to inject samples"
  61         exit 1
  62 fi
  63
  64 # Below is an example of the instruction samples reporting:
  65 #   8.18%  jshell           jitted-50116-29.so    [.] Interpreter
  66 #   0.75%  Thread-1         jitted-83602-1670.so  [.] jdk.internal.jimage.BasicImageReader.getString(int)
  67 perf report --stdio -i ${PERF_INJ_DATA} 2>&1 | \
  68         grep -E " +[0-9]+\.[0-9]+% .* (Interpreter|jdk\.internal).*" > /dev/null 2>&1
  69
  70 if [ $? -ne 0 ]; then
  71         echo "Fail to find java symbols"
  72         exit 1
  73 fi
  74
  75 exit 0