openjdk 11 GC功能测试结果汇总¶

测试环境¶

• qemu

  qemu-system-riscv64 --version QEMU emulator version 8.1.92 Copyright © 2003-2023 Fabrice Bellard and the QEMU Project developers

• os

  cat /etc/os-release NAME="openEuler" VERSION="23.03" ID="openEuler" VERSION_ID="23.03" PRETTY_NAME="openEuler 23.03" ANSI_COLOR="0;31"

• jdk

  java -version openjdk version "11.0.11" 2021-04-20 OpenJDK Runtime Environment Bisheng (build 11.0.11+9) OpenJDK 64-Bit Server VM Bisheng (build 11.0.11+9, mixed mode)

GC测试¶

1. SerialGC test ok¶

java -XX:+UseSerialGC -XX:+PrintGCDetails -Xmx100m -Xms10m binarytrees 18

jcmd 732 VM.flags

2. ParNewGC¶

jdk11 已不支持ParNewGC

arm:

riscv:

3. ParallelGC test ok¶

java -XX:+UseParallelGC -XX:+PrintGCDetails -Xmx100m -Xms10m binarytrees 18

4.ParallelOldGC test ok¶

java -XX:+UseParallelOldGC -XX:+PrintGCDetails -Xmx100m -Xms10m binarytrees 18

5.ConMarkSweepGC test ok¶

java -XX:+UseConcMarkSweepGC -XX:+PrintGCDetails -Xmx100m -Xms10m binarytrees 18

6. G1GC test ok¶

java -XX:+UseG1GC -XX:+PrintGCDetails -Xmx100m -Xms10m binarytrees 18

7. ZGC¶

在arm和riscv实测openjdk 11不支持ZGC

arm:

riscv: