- Run
mainmethod ofProviderindubbo-providermodule to startprovider-side. - Run
mainmethod ofConsumerindubbo-consumermodule to startconsumer-side. - View memory cost by memory analyzed tool.
Tools and commands I used was below
- find pid,
jps|grep "Consumer"result:16238 Consumerpid is 16238 - run GC manually.
jcmd 16238 GC.run - view class histogram
jcmd 16238 GC.class_histogram
num #instances #bytes class name
----------------------------------------------
1: 1616 1510006176 [I
2: 17732 1398664 [C
3: 1642 944136 [B
4: 4543 526712 [Ljava.lang.Object;
5: 4462 500616 java.lang.Class
6: 17696 424704 java.lang.String
the int[] occupy much memory.
4. uncomment 25th line in Consumer.java, InternalThreadLocal.removeAll(), memory cost will be normal.