Comments (1)
Param-S
commented on May 31, 2024
1
Effect of CDS on startup and memory.
Startup time measure by capturing timestamp before invoking the Java command & after server started up. Like
in Dockerfile:
///CMD ["java", "-jar", "/javaAction/build/libs/javaAction-all.jar"]
CMD ["/bin/bash", "/javaAction/run.sh"]
in run.sh:
date +%H:%M:%S:%N-%Z /* capture the time before invoking java command */
java -jar /javaAction/build/libs/javaAction-all.jar
in Proxy.java:
public void start() {
server.start();
**/* capture the time after the Http server start */**
ZoneId zoneId = ZoneId.of("UTC");
ZonedDateTime ctime = ZonedDateTime.now(zoneId);
System.out.println(ctime.toString());
}
With this change, I measured the startup time for 50 iterations & server starts up faster with CDS which is evident from the below graph.
Memory Usage:
CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS
388eea3db27f Xshare 0.11% 17.95MiB / 15.67GiB 0.11% 648B / 0B 0B / 4.1kB 23
16482b3afcc5 Default 0.13% 19.56MiB / 15.67GiB 0.12% 648B / 0B 0B / 4.1kB 23
Opened PR #21 to enable CDS.
from openwhisk-runtime-java.
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from openwhisk-runtime-java.