os_runtime_statistic (Host-Side syscall and pthreadcall)

The timeline information of host-side syscall and pthreadcall data is displayed at the OS Runtime API level in the msprof_*.json file. The summary information is summarized in the os_runtime_statistic_*.csv file.

Applicable Products

Product	Supported
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	√
Atlas inference products	√
Atlas training products	√
Ascend 950PR/Ascend 950DT	√

Data at OS Runtime API Layer in msprof_*.json

The following figure shows data at the OS Runtime API level in the msprof_*.json file.

Figure 1 OS runtime API layer

**Table 1** Field description
Field	Description
Title	API name of a component. As shown in the figure, pthread_mutex_unlock is selected.
Start	Start point on the timeline, which is automatically aligned with that in chrome trace (ms).
Wall Duration	Time taken by the calls to an API (ms).

os_runtime_statistic_*.csv File

The file content is formatted as follows.

Figure 2 os_runtime_statistic_*.csv

**Table 2** Field description
Field	Description
Device_id	Device ID. host is displayed for data on the host.
Process ID	Process ID.
Thread ID	Thread ID.
Name	API name.
Time(%)	Percentage of time taken by the calls to an API.
Time(us)	Total time taken by the calls to an API, in μs.
Count	Number of calls to an API.
Avg(us), Max(us), Min(us)	Average, maximum, and minimum duration of the calls to an API, in μs.

Parent topic: Profile Data File References