JVM GC日志分析.doc

文档介绍：,对冃前线上JVM(-b03)GC日志进行了分析,发现一些参数设置不太合理的地方,有待后续通过数据来进行验证。(通过JVM配置GCPrint参数获取GC日志):[:[ParNew:130944K->0K(131008K),]432961K->302710K(786368K),]:[GC[1CMS-initial-mark:30271OK(655360K)]348624K(786368K),]:[CMS-concurrent-mark-start]:[:[ParNew:130944K->0K(131008K),]433654K->303891K(786368K),]:[CMS-concurrent-mark:]:[CMS-concurrent-preclean-start]:[CMS-concurrent-prec1ean:]:[CMS-concurrent-abortable-preclean-start]:[CMS-concurrent-abortable-preclean:]:[:[ParNew:130944K->0K(131008K),]434835K->305889K(786368K),]:[GC[upancy:68582K(131008K)]:[Rescan(parallel),]:[weakrefsprocessing,][1CMS-remark:305889K(655360K)]374472K(786368K),]:[CMS-concurrent-sweep-sterrt]:[CMS-concurrent-sweep:]:[CMS-concurrent-reset-start]:[CMS-concurrent-reset:]:[:[ParNew:130924K->0K(131008K),]432106K->302870K(786368K),]:[GC[1CMS-initial-mark:302870K(655360K)]350092K(786368K),]:[CMS-concurrent-mark-start]:[:[ParNew:130944K->0K(131008K),]43381