prasanthj · December 13, 2017 23:41
diff --git a/java-async-profiler.txt b/java-async-profiler.txt
 # Pre-req: gcc, gcc-c++, git (to clone), openjdk with debug symbols (centos: java-1.8.0-openjdk-debug.x86_64, ubuntu: openjdk-8-dbg)
 # Git clone async-profiler https://github.com/jvm-profiling-tools/async-profiler
 # Make sure JAVA_HOME is set and you are logged as same user running the java process
 cd async-profiler
 make all
 # Also git clone FlameGraph in the same directory as you clone async-profiler

 # sysctl changes
 echo 1 > /proc/sys/kernel/perf_event_paranoid
 echo 0 > /proc/sys/kernel/kptr_restrict

 # CPU profiling for 200s with 1ms sampling interval and flame graph generation
 ./profiler.sh -d 200 -o collapsed -f /tmp/collapsed.txt `pgrep -f ProcessName` && ../FlameGraph/flamegraph.pl --colors=java /tmp/collapsed.txt > /tmp/flamegraph.svg

 # Heap profiling
 ./profiler.sh -d 200 -e alloc -f /tmp/heap.txt
	# Pre-req: gcc, gcc-c++, git (to clone), openjdk with debug symbols (centos: java-1.8.0-openjdk-debug.x86_64, ubuntu: openjdk-8-dbg)
	# Git clone async-profiler https://github.com/jvm-profiling-tools/async-profiler
	# Make sure JAVA_HOME is set and you are logged as same user running the java process
	cd async-profiler
	make all
	# Also git clone FlameGraph in the same directory as you clone async-profiler

	# sysctl changes
	echo 1 > /proc/sys/kernel/perf_event_paranoid
	echo 0 > /proc/sys/kernel/kptr_restrict

	# CPU profiling for 200s with 1ms sampling interval and flame graph generation
	./profiler.sh -d 200 -o collapsed -f /tmp/collapsed.txt `pgrep -f ProcessName` && ../FlameGraph/flamegraph.pl --colors=java /tmp/collapsed.txt > /tmp/flamegraph.svg

	# Heap profiling
	./profiler.sh -d 200 -e alloc -f /tmp/heap.txt