monotonic 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.

Zookeeper This blog is part 3 of the algorithm series Learn more Repeat questions It is known that a sequence is composed of random numbers, and its longest monotonic subsequence is obtained. Requirements:The monotonic is classified into two

The arm arch in kernel-2.6.22 has added support for dynticks, clocksource/event. We have found some recent changes to the kernel clock and timer subsystems.Generally, soft-timer (timer wheel/hrtimer) is composed of hardware-timer (such as clock

Overshoot (overshoot)Overshoot is often generated when a faster signal is driven along a longer line and there is no valid match on the route.     The problem caused by overshoot is that the signal high level "1" exceeds the input maximum voltage

The first two sections of this series discuss clock sources for timing: clocksource and some representation of kernel internal time, but for real users, we perceive the real time of the real world, that is, the so-called wall time. clocksource can

In some system calls you need to specify whether the time is used Clock_monotonic or clock_realtime, it was always unclear how the difference between them, and now finally understand.Clock_monotonic is monotonic time, and Clock_realtime is wall time.

In some system calls you need to specify whether the time is used Clock_monotonic or clock_realtime, it was always unclear how the difference between them, and now finally understand.Clock_monotonic is monotonic time, and Clock_realtime is wall time.

Kernel-2.6.22 's arm arch has joined the Dynticks, clocksource/event support. Imx31 's BSP has some changes here in clock. Find some kernel clock and timer subsystem changes recently, summed up. Generally speaking, Soft-timer (Timer Wheel/hrtimer)

First, prefaceFrom an application perspective, there are three types of time-related services that the kernel needs to provide:1, and system time-related services. For example, when you write a record to a database, you need to record the operation

Reprint Please specify Source: http://blog.csdn.net/luotuo44/article/details/39374759This article mainly deals with Linux time types, time functions, and sleep functions provided by Linux.the time type and the corresponding function:time_t:The most