1# DFX Subsystem Changelog
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3## cl.hiviewdfx.1 System Event Logging Frequency Limit Changed for the write API of the HiSysEvent Module
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5This allows the **write** API to adapt to service scenarios that require frequent system event logging.
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7  - Changed the maximum number of times the **write** API can be called for system event logging within 5 seconds from 10 to 100.
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9**Change Impact**
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11The **write** API is able to adapt to service scenarios that require frequent system event logging.
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13**Key API/Component Changes**
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15Involved APIs:
16  - Rust: hisysevent::write;
17  - JS: hiSysEvent.write;
18  - C++: HiSysEventWrite;
19  - C: HiSysEvent_Write;
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21**Adaptation Guide**
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23No additional adaptation is required.
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