linux sleep timer

first, the kernel timer 1. Basic ConceptsIn some scenarios, we need to do some action after a certain time, but do not want to wait and waste the CPU, this time the timer is a very appropriate mechanism. The timer is used to perform a function at a

COPY FROM:HTTP://WWW.2CTO.COM/OS/201204/127771.HTML1 Linux process sleep and wake up in Linux, processes that wait only for CPU time are called ready processes, and they are placed in a running queue, The status flag bit for a ready process is

Use of timers in Linux -- alarm () & setitimer (): 1. Alarm-------------------------------------------Alarm () and signal () are enough if they are not required to be accurate.Unsigned int alarm (unsigned int seconds)Function Description: Alarm ()

Linux Kernel Timer I. Definition /Include/Linux/Timer. h struct timer_list {struct list_head entry;unsigned long expires;void (*function)(unsigned long);unsigned long data;struct tvec_t_base_s *base;#ifdef CONFIG_TIMER_STATSvoid *start_site;char

"copyright notice: respect for the original, reproduced please retain the source: Blog.csdn.net/shallnet, the article is only for learning exchange, do not use for commercial use " The previous section says that the mechanism of putting the work

kernel timer (2.6.23) First, the definition:/include/linux/timer.h

The purpose of using a timer is to perform a task periodically, or to perform a task at a specified time. In order to achieve this goal, there are generally two common and more effective methods. One is using the three timer inside Linux, and the

Introduction: Use ok6410 to collect adis16405 data through imu_ev30. The collection frequency is 100Hz and a 10 ms timer is required. First, we considered a POSIX per-process timer, and found that it was okay when the load was light, and the timing

1. Linux processes sleep and wake up in Linux. processes that only wait for CPU time are called ready processes, which are placed in a running queue, the status flag of a ready process is TASK_RUNNING. Once a running process runs out of time slices,

1. Sleep and wakeup of Linux ProcessesIn Linux, processes that only wait for CPU time are called ready processes. They are placed in a running queue, and the status flag of a ready process is task_running. Once a running process runs out of time