Alibaba cloud Q & A 2022-05-15 05:00:07 阅读数:73
stay CMS GC In the process, the business thread puts the object into the old generation （ Characteristics of concurrent collection ） What is the reason for the lack of memory ？
1）fgc Trigger ratio is too large , Lead to excessive occupation in the old age , During concurrent collection, the user thread continues to generate objects, resulting in the trigger FGC The proportion . 2） Memory fragments exist in older generations .
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