1e41f4b71Sopenharmony_ci# DFX Subsystem Changelog 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci## Change in the Graphic Memory Statistics Method of HiDumper Component 4e41f4b71Sopenharmony_ci 5e41f4b71Sopenharmony_ci**Access Level** 6e41f4b71Sopenharmony_ci 7e41f4b71Sopenharmony_ciOther 8e41f4b71Sopenharmony_ci 9e41f4b71Sopenharmony_ci**Reason for Change** 10e41f4b71Sopenharmony_ci 11e41f4b71Sopenharmony_ciThe Graph value in the **hidumper --mem pid** command was obtained by calling the API provided by RenderService, which could not access the corresponding ION/DMA memory. 12e41f4b71Sopenharmony_ci 13e41f4b71Sopenharmony_ci**Change Impact** 14e41f4b71Sopenharmony_ci 15e41f4b71Sopenharmony_ciAfter **hidumper --mem pid** is executed to view the Pss memory of a specified process, there will be an additional Graph value. 16e41f4b71Sopenharmony_ci 17e41f4b71Sopenharmony_ci**Change Since** 18e41f4b71Sopenharmony_ci 19e41f4b71Sopenharmony_ciOpenHarmony SDK 4.1.6.7 20e41f4b71Sopenharmony_ci 21e41f4b71Sopenharmony_ci**Key API/Component Changes** 22e41f4b71Sopenharmony_ci 23e41f4b71Sopenharmony_ciAffected Component: HiDumper 24e41f4b71Sopenharmony_ci 25e41f4b71Sopenharmony_ciBefore the change: After **hidumper --mem pid** is executed, the memory information's graph statistics were obtained by calling the API provided by RenderService. 26e41f4b71Sopenharmony_ci 27e41f4b71Sopenharmony_ciAfter the change: After **hidumper --mem pid** is executed, the graph statistics in the memory information is obtained by reading from the **/proc/process_dmabuf_info** node. 28e41f4b71Sopenharmony_ci 29e41f4b71Sopenharmony_ci**Adaptation Guide** 30e41f4b71Sopenharmony_ci 31e41f4b71Sopenharmony_ciNo adaptation is needed. 32