Add counting timer period as part of driver <-> user-space protocol
This patch is adding counting timer period value as part of the protocol between driver and user space. Please note that this period is set in PMU_CTL_START
and only there it's set (user space) and get (driver PMU_CTL_START
handler).
User can adjust count timer period from 10ms to 100ms. This value has to be set for each count separately.
Note: now we can't from user space change this value. I will add separate MR to add setting to change this counting period value.
In this patch:
- Add
period
field topmu_ctl_hdr
structure. - Add default
period
values tomacros.h
- as this is common interface between driver and user space. - Refactored
DueTime
time (negative value, see KeSetTimerEx function (wdm.h).
[in] DueTime
Specifies the absolute or relative time at which the timer is to expire. If the value of the DueTime parameter is negative, the expiration time is relative to the current system time.
Related to: WPERF-327
Testing
>pytest
=========================== test session starts ============================
platform win32 -- Python 3.11.0rc2, pytest-7.2.0, pluggy-1.0.0
collected 99 items
wperf_cli_common_test.py .... [ 4%]
wperf_cli_extra_events_test.py .... [ 8%]
wperf_cli_json_validator_test.py .... [ 12%]
wperf_cli_list_test.py ..... [ 17%]
wperf_cli_metrics_test.py ..s....sssssssss [ 33%]
wperf_cli_padding_test.py ........... [ 44%]
wperf_cli_stat_test.py ........................................... [ 87%]
wperf_cli_test_test.py ..... [ 92%]
wperf_cli_timeline_test.py ...... [ 98%]
wperf_lib_app_test.py s [100%]
================ 88 passed, 11 skipped in 125.78s (0:02:05) ================
Edited by Przemyslaw Wirkus