JVM鍐呭瓨璋冧紭鍙傛暟鐨勮缃渶瑕佹牴鎹叿浣撶殑搴旂敤鍦烘櫙鍜岀‖浠剁幆澧冩潵杩涜璋冩暣锛屼笅闈㈡槸涓€浜涘父鐢ㄧ殑JVM鍐呭瓨璋冧紭鍙傛暟鍙婂叾寤鸿鐨勮缃€硷細

1. -Xms锛氳缃甁VM鐨勫垵濮嬪爢澶у皬锛屼竴鑸缃负搴旂敤鍐呭瓨鐨?/4鎴?/2锛屼緥濡?Xms1g銆?/li>
2. -Xmx锛氳缃甁VM鐨勬渶澶у爢澶у皬锛屼竴鑸缃负搴旂敤鍐呭瓨鐨?/2鎴?/3锛屼緥濡?Xmx2g鎴?Xmx4g銆?/li>
3. -Xmn锛氳缃柊鐢熶唬鐨勫ぇ灏忥紝涓€鑸缃负鍫嗗ぇ灏忕殑1/4鎴?/3锛屼緥濡?Xmn512m鎴?Xmn1g銆?/li>
4. -XX:PermSize锛氳缃案涔呬唬锛堟柟娉曞尯锛夌殑鍒濆澶у皬锛屼竴鑸缃负Metaspace鐨?/4鎴?/2锛屼緥濡?XX:PermSize256m銆?/li>
5. -XX:MaxPermSize锛氳缃案涔呬唬锛堟柟娉曞尯锛夌殑鏈€澶уぇ灏忥紝涓€鑸缃负Metaspace鐨?/2鎴?/3锛屼緥濡?XX:MaxPermSize512m鎴?XX:MaxPermSize1g銆?/li>
6. -Xss锛氳缃瘡涓嚎绋嬬殑鍫嗘爤澶у皬锛屼竴鑸缃负256k鎴?12k锛屼緥濡?Xss256k銆?/li>
7. -XX:+UseG1GC锛氬惎鐢℅1鍨冨溇鏀堕泦鍣ㄣ€?/li>
8. -XX:+UseParallelGC锛氬惎鐢ㄥ苟琛屽瀮鍦炬敹闆嗗櫒銆?/li>
9. -XX:+UseConcMarkSweepGC锛氬惎鐢–MS鍨冨溇鏀堕泦鍣ㄣ€?/li>
10. -XX:+UseSerialGC锛氬惎鐢ㄤ覆琛屽瀮鍦炬敹闆嗗櫒銆?/li>
11. -XX:MaxGCPauseMillis锛氳缃瀮鍦炬敹闆嗙殑鏈€澶у仠椤挎椂闂达紝渚嬪-XX:MaxGCPauseMillis500銆?/li>
12. -XX:ParallelGCThreads锛氳缃苟琛屽瀮鍦炬敹闆嗙殑绾跨▼鏁帮紝涓€鑸缃负CPU鏍稿績鏁扮殑1/2鎴?/3锛屼緥濡?XX:ParallelGCThreads4銆?/li>
13. -XX:SurvivorRatio锛氳缃柊鐢熶唬涓璭den鍖哄拰survivor鍖虹殑姣斾緥锛屼竴鑸缃负8鎴?6锛屼緥濡?XX:SurvivorRatio8銆?/li>
14. -XX:MaxTenuringThreshold锛氳缃璞″湪鏂扮敓浠ｄ腑瀛樻椿鐨勫勾榫勯槇鍊硷紝涓€鑸缃负15鎴?0锛屼緥濡?XX:MaxTenuringThreshold15銆?/li>

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