aragozin

git clone -b hz_demo_step_1 https://github.com/aragozin/proflab.git hz_bench
git clone -b bench/deadlock/master https://github.com/aragozin/proflab.git deadlock
git clone -b demo https://github.com/aragozin/spring-petclinic.git petclinic

cd hz_bench
mvn -P bench test
jcmd 4252 ManagementAgent.start jmxremote.authenticate=false jmxremote.ssl=false jmxremote.port=5555 jmxremote.rmi.port=5555

aragozin

clone https://github.com/aragozin/optaplanner-bench.git
git checkout jmc_workbench_0
mvn package
mvn -P ui exec:java

Disable some JVM optimizations
MAVEN_OPTS=-Xmx512m -XX:+NeverActAsServerClassMachine -XX:CICompilerCount=1 -XX:-TieredCompilation -XX:-DoEscapeAnalysis

mvn -P mrbench exec:java

aragozin

void ClearNoncleanCardWrapper::do_MemRegion(MemRegion mr) {
  assert(mr.word_size() > 0, "Error");
  assert(_ct->is_aligned(mr.start()), "mr.start() should be card aligned");
  // mr.end() may not necessarily be card aligned.
  jbyte* cur_entry = _ct->byte_for(mr.last());
  const jbyte* limit = _ct->byte_for(mr.start());
  HeapWord* end_of_non_clean = mr.end();
  HeapWord* start_of_non_clean = end_of_non_clean;
  while (cur_entry >= limit) {
    HeapWord* cur_hw = _ct->addr_for(cur_entry);

aragozin

void ClearNoncleanCardWrapper::do_MemRegion(MemRegion mr) {
  assert(mr.word_size() > 0, "Error");
  assert(_ct->is_aligned(mr.start()), "mr.start() should be card aligned");
  // mr.end() may not necessarily be card aligned.
  jbyte* cur_entry = _ct->byte_for(mr.last());
  const jbyte* limit = _ct->byte_for(mr.start());
  HeapWord* end_of_non_clean = mr.end();
  HeapWord* start_of_non_clean = end_of_non_clean;
  while (cur_entry >= limit) {
    HeapWord* cur_hw = _ct->addr_for(cur_entry);