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ChinaXing/MAT.sql

Created July 1, 2019 05:52
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MAT.sql
-- 分析 unreachable对象 https://wiki.eclipse.org/MemoryAnalyzer/FAQ#How_to_analyse_unreachable_objects
-consoleLog -application org.eclipse.mat.api.parse -keep_unreachable_objects <heapDump.bin>
-- 查询 非unreachable的对象，GCRootInfo null 表名此对象非GcRoot，MAT keepunreachable 对象时，unreachable对象的gcroot是自身
SELECT * FROM byte[] s WHERE ((s.@length >= 2000000) and (s.@GCRootInfo = null))
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