垃圾收集器G1推荐配置


-XX:OnOutOfMemoryError=kill -9 %p
-XX:OnError=jstack -F %p >ErrorDump.log
-Xms4g
-Xmx8g
-server
-XX:+AggressiveOpts
-XX:+HeapDumpOnOutOfMemoryError
-XX:HeapDumpPath=/home/lcs/m.hprof
-XX:+UseG1GC
-XX:MaxGCPauseMillis=200
-XX:G1HeapRegionSize=16m
-XX:+ParallelRefProcEnabled
-XX:ParallelGCThreads=20
-XX:ConcGCThreads=8
-Djava.net.preferIPv4Stack=true

 

 

说明:

-XX:+ParallelRefProcEnabled -XX:ParallelGCThreads=20(逻辑核心数的5/8) -XX:ConcGCThreads=8(逻辑核心数的1/4) 

命令:

# 查看逻辑CPU的个数

cat /proc/cpuinfo| grep "processor"| wc -l

参考:https://www.cnblogs.com/emanlee/p/3587571.html

 

 

 

参考博文:

http://www.cnblogs.com/ASPNET2008/p/6496481.html

http://itindex.net/detail/50104-jvm-%E6%97%A5%E5%BF%97-%E7%90%86%E8%A7%A3

http://www.importnew.com/15311.html

jvm参数详细说明:

http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html

 

posted @ 2018-03-01 17:14  神风炼  Views(752)  Comments(0Edit  收藏  举报