1e41f4b71Sopenharmony_ci# DFX Subsystem Changelog
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3e41f4b71Sopenharmony_ci## Change in the Graphic Memory Statistics Method of HiDumper Component
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5e41f4b71Sopenharmony_ci**Access Level**
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7e41f4b71Sopenharmony_ciOther
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9e41f4b71Sopenharmony_ci**Reason for Change**
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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.
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13e41f4b71Sopenharmony_ci**Change Impact**
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15e41f4b71Sopenharmony_ciAfter **hidumper --mem pid** is executed to view the Pss memory of a specified process, there will be an additional Graph value.
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17e41f4b71Sopenharmony_ci**Change Since**
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19e41f4b71Sopenharmony_ciOpenHarmony SDK 4.1.6.7
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21e41f4b71Sopenharmony_ci**Key API/Component Changes**
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23e41f4b71Sopenharmony_ciAffected Component: HiDumper
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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.
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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.
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29e41f4b71Sopenharmony_ci**Adaptation Guide**
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31e41f4b71Sopenharmony_ciNo adaptation is needed.
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