1# JS API Changes of the DFX Subsystem 2 3The table below lists the APIs changes of the DFX subsystem in OpenHarmony 3.2 Beta1 over OpenHarmony 3.1 Release. 4 5## API Changes 6 7| Module| Class| Method/Attribute/Enumeration/Constant| Change Type| 8|---|---|---|---| 9| ohos.hidebug | hidebug | getServiceDump(serviceid : number) : string; | Added| 10| ohos.hidebug | hidebug | getCpuUsage() : number; | Added| 11| ohos.hidebug | hidebug | getPrivateDirty() : bigint; | Added| 12