Alexey Ragozin aragozin
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| 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); |
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| 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); |
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| 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
/ gist:6ac622de6328a1b6ee58a1bf6f2e523d
Last active
September 12, 2022 18:55
Workshop JVM diagnostics tools
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| 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 |