OrgApache/incubator-nuttx
OrgApache
/
incubator-nuttx
mirror of https://github.com/apache/incubator-nuttx.git
1
0
Fork 0
Code Issues Releases Wiki Activity

sched/Kconfig: Minor grammar fixes in help text 

sched/Kconfig:

    * SCHED_CRITMONITOR, SCHED_CPULOAD: Minor grammar fixes in help
      text.
This commit is contained in:
Nathan Hartman 2020-12-21 17:02:03 -05:00 committed by Xiang Xiao
parent 16b1a87da4
commit 93b9ad0237
1 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
sched/Kconfig
View File

@ -726,10 +726,10 @@ config SCHED_CRITMONITOR
---help---
Enables logic that monitors the duration of time that a thread keeps
interrupts or pre-emption disabled. These global locks can have
negative consequences to real timer performance: Disabling interrupts
adds jitter in the time when a interrupt request is asserted until
the hardware can responds with the interrupt. Disabling pre-emption
adds jitter in the timer from when the event is posted in the
negative consequences to real time performance: Disabling interrupts
adds jitter in the time when an interrupt request is asserted until
the hardware can respond with the interrupt. Disabling pre-emption
adds jitter in the time from when the event is posted in the
interrupt handler until the task that responds to the event can run.
If this option is selected, then the following interfaces must be
@ -749,7 +749,7 @@ config SCHED_CRITMONITOR
in unknown units) can be obtained by subtracting a start time from
the current time.
The second interface simple converts an elapsed time into well known
The second interface simply converts an elapsed time into well known
units for presentation by the ProcFS file system.
config SCHED_CPULOAD
@ -760,15 +760,15 @@ config SCHED_CPULOAD
If this option is selected, the timer interrupt handler will monitor
if the system is IDLE or busy at the time of that the timer interrupt
occurs. This is a very coarse measurement, but over a period of time,
it can very accurately determined the percentage of the time that the
it can very accurately determine the percentage of the time that the
CPU is IDLE.
The statistics collected in this could be used, for example in the
The statistics collected in this could be used, for example, in the
PROCFS file system to provide CPU load measurements when read.
Note that in tickless mode of operation (SCHED_TICKLESS) there is
no system timer interrupt and CPU load measurements will not be
possible unless you provide an alternative clock to driver the
possible unless you provide an alternative clock to drive the
sampling and select SCHED_CPULOAD_EXTCLK.
if SCHED_CPULOAD