L1 Cache Miss Analysis

PerfJ is only work on new versions of JDK with frame pointer preserved.

Copy or download the [sample code] (https://github.com/coderplay/perfj/blob/master/examples/L1CacheMiss.java) to you local machine

wget https://raw.githubusercontent.com/coderplay/perfj/master/examples/L1CacheMiss.java

Compile it

javac –cp . L1CacheMiss.java

Run it with PreserveFramePointer enabled

java -Xmx2g -XX:+PreserveFramePointer L1CacheMiss

After that, run perfj

bin/perfj record -e  L1-dcache-load-misses  -F 99 -g -p `pgrep -f L1CacheMiss`

After a while use Ctrl+C to terminate the profiling. We will see a perf.data as well as /tmp/perf-$pid.map are generated by perfj on local disk. Finally, show the result

bin/perfj report --stdio