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GChisto是一款用于分析JAVA gc日志的工具，并且还提供了CMS GC补丁
资源介绍
GChisto及CMS GC相应补丁文件，补丁文件未亲测。
This patch adds the following features and improvements when using CMS GC in incremental mode:
detecting Full GCs
corrected parsing errors when using -XX:+PrintGCDateStamps
corrected parsing errors when icms_dc=NN appears in GC-log
tested so far only with this combination of parameters:
-XX:+UseConcMarkSweepGC
-XX:+CMSIncrementalMode
-verbose:gc
-XX:+PrintGCTimeStamps
-XX:+PrintGCDateStamps
-XX:+PrintGCDetails
-Xloggc:/var/log/gc.log