harmony 鸿蒙Resource Leak Event Overview
Resource Leak Event Overview
HiAppEvent provides APIs for subscribing to system resource leak events of the system.
The params parameter in the event information is described as follows.
params
| Name | Type | Description |
|---|---|---|
| time | number | Event triggering time, in ms. |
| bundle_version | string | Application version. |
| bundle_name | string | Application name. |
| pid | number | Process ID of the application. |
| uid | number | User ID of the application. |
| resource_type | string | Resource type. For details, see resource_type. |
| memory | object | Memory information (only available for pss_memory and js_heap). For details, see memory. |
| fd | object | File descriptor information (only available for fd). For details, see fd. |
| thread | object | Thread information (only available for thread). For details, see thread. |
| external_log | string[] | Path of the error log file. If the directory files exceed the threshold (for details, see log_over_limit), new log files may fail to be written. Therefore, delete the log files immediately after they are processed. |
| log_over_limit | Boolean | Whether the size of generated fault log files and existing log files exceeds the upper limit (2 GB). The value true indicates that the upper limit is exceeded and logs fail to be written. The value false indicates that the upper limit is not exceeded. |
resource_type
| Value | Description |
|---|---|
| pss_memory | PSS memory leak. |
| js_heap | JS memory leak. |
| fd | FD resource leak. |
| thread | Thread leak. |
memory
| Name | Type | Description |
|---|---|---|
| rss | number | Size of the memory allocated for a process (only available for pss_memory), in KB. |
| vss | number | Size of the virtual memory applied by a process from the system (only available for pss_memory), in KB. |
| pss | number | Size of the physical memory actually used by a process (only available for pss_memory), in KB. |
| sys_free_mem | number | Size of free memory (only available for pss_memory), in KB. |
| sys_avail_mem | number | Size of available memory (only available for pss_memory), in KB. |
| sys_total_mem | number | Total memory size (only available for pss_memory), in KB. |
| limit_size | number | Limit of memory size (only available for js_heap), in KB. |
| live_object_size | number | Size of the used memory (only available for js_heap), in KB. |
fd
| Name | Type | Description |
|---|---|---|
| num | number | Total number of FDs. |
| top_fd_type | string | FD with the largest number. |
| top_fd_num | number | Number of top_fd_type. |
thread
| Name | Type | Description |
|---|---|---|
| num | number | Total number of threads. |
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