time since clock

First, prefaceClock is the basis of a timer, and any timer needs to work on a given clock. The kernel maintains a number of clock, the second chapter of this article describes the basic concept of clock and some statically defined POSIX clock.

In the previous section of the discussion, we have been based on the assumption that the clock events in Linux are provided by a cycle clock, regardless of whether the clock_event_device in the system is working in a cycle-triggered mode or in a

Original Address http://www.dzsc.com/data/html/2011-1-17/88338.html1 IntroductionIn distributed systems, a global time is often needed to determine the sequence of events in the system, to coordinate the transmission of various messages, and to

Article Title: linux tips -- set the clock and time. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open

This document explains how to set a computer clock in Linux, how to set your time zone, and other materials related to how Linux saves time. Your computer has two clocks. One is a always-running, battery (hardware, bios, or CMOS) clock, the

Http://www.fpga.com.cn/advance/skill/speed.htm Http://www.fpga.com.cn/advance/skill/design_skill3.htm The clock is the most important and special signal of the entire circuit. Most devices in the system are operated on the hop-on-line of the

Crazy Bingolearn to walk first before your want to run ... Discussion on the factors affecting the clock in FPGA designHttp://www.fpga.com.cn/advance/skill/speed.htmHttp://www.fpga.com.cn/advance/skill/design_skill3.htmThe clock is the most

  The clock is the most important and special signal of the entire circuit. Most devices in the system are operated on the hop-on-line of the clock, which requires that the delay deviation of the clock signal be very small, otherwise, the timing

The original Article portal has five clock sources in stm32: Hsi, HSE, LSI, LSE, and PLL. There are actually four clock sources, as shown in (gray-blue). The PLL is generated by the frequency doubling of the PLL circuit.① HSI is a high-speed

CPU clock speed, that is, the clock frequency (cpuClock speed ). In general, the CPU is as high as, And the is the "CPU clock speed ". Many people think that the CPU clock speed is its running speed. The clock speed of the CPU indicates the speed at