23:43 - 24:30
87.2% of the time in this time range was spent in Garbage Collection pauses. This means that reducing garbage collections would have a high impact on performance. Usually, the most effective way to do is to reduce allocations.
Head over to the allocations view to learn what allocations were done in this period.
20:40 - 21:17
CPU load was 93.27% during this time range. Improve performance by reducing it.
Head over to the CPU view to learn which code paths used the most CPU.
| JVM Name | OpenJDK 64-Bit Server VM |
|---|---|
| JVM Version | OpenJDK 64-Bit Server VM (13.0.1+9) for linux-amd64 JRE (13.0.1+9), built on Oct 26 2019 10:07:46 by "jenkins" with gcc 7.3.1 20180303 (Red Hat 7.3.1-5) |
| Start time | 1589404720649 |
| JVM Arguments | -Xms1g -Xmx1g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -Des.networkaddress.cache.ttl=60 -Des.networkaddress.cache.negative.ttl=10 -XX:+AlwaysPreTouch -Xss1m -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Djna.nosys=true -XX:-OmitStackTraceInFastThrow -Dio.netty.noUnsafe=true -Dio.netty.noKeySetOptimization=true -Dio.netty.recycler.maxCapacityPerThread=0 -Dio.netty.allocator.numDirectArenas=0 -Dlog4j.shutdownHookEnabled=false -Dlog4j2.disable.jmx=true -Djava.io.tmpdir=/tmp/elasticsearch-16215119742077473974 -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=data -XX:ErrorFile=logs/hs_err_pid%p.log -Xlog:gc*,gc+age=trace,safepoint:file=logs/gc.log:utctime,pid,tags:filecount=32,filesize=64m -Djava.locale.providers=COMPAT -javaagent:blunders-agent.jar -Xms4G -Xmx4G -Dio.netty.allocator.type=pooled -XX:MaxDirectMemorySize=2147483648 -Des.path.home=/home/anton/dev/blunders/demo/es-7.4.2/elasticsearch-7.4.2 -Des.path.conf=/home/anton/dev/blunders/demo/es-7.4.2/elasticsearch-7.4.2/config -Des.distribution.flavor=default -Des.distribution.type=tar -Des.bundled_jdk=true |
| Type | Intel (null) SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 Core Intel64 |
|---|---|
| Sockets | 1 |
| Cores | 4 |
| Hardware Threads | 4 |
| Young Collector | ParNew |
|---|---|
| Old Collector | ConcurrentMarkSweep |
| Parallel GC Threads | 4 |
| Concurrent GC Threads | 0 |
| GC Time ratio | 99 |