smart scheduler

Jfinal-scheduler is a simple Task Scheduler plug-in based on CRON4J and Scheduledthreadpoolexecutor implementations. plugin [email protected] Address:Https://git.oschina.net/myaniu/jfinal-scheduler Very simplified now several convenient: 1) automatically set the number of scheduled threads according to the number of CPU cores2) Tasks only need to implement Runna

When it comes to task scheduling, you might think of the quartz framework, but the Simple Task Scheduler tool class that comes with the JDK doesn't know much about people. I think if your business is relatively simple, there is no need to use quartz and other frameworks, using a timer can be fully competent. Simply to share the timer I know.The timer is a timer tool provided in the JDK that uses a single thread that executes the specified scheduled ta

Before I submitted and installed the child-runs-first patch, I did an experiment to verify the results of my previous theoretical analysis, in my opinion, sub-processes may be more likely to seize the parent process no matter how they seize the parent process. Of course, the premise is yes. For details, see the experiment below. Null theory is useless. Theoretically, the CFS scheduler implements strict normalization, but in fact it is not. The practic

Originally, LAMP programmers had to use the help of the operating system to complete some periodic database operation tasks, such as Windows scheduled tasks or Linux contab. MySQL5.1 has finally added the Event Scheduler function, which allows you to implement scheduled jobs directly in the background. But I don't know why. In the reference manual of the English version, the Event Scheduler in Chapter 20th

Original article, reproduced please indicate the source: http://blog.csdn.net/sfh366958228/article/details/38893795 Preface After reading the first nine learning notes, we can basically make some simple interfaces. But what if we want to keep things moving? The answer is simple. Use schedle. Let's take a look at the usage of schedule. Scheduler usage In the previous ccnode study, we introduced some schedule methods. Now let's review: // Return whethe

Oracle Scheduler is a job for managing and scheduling databases, allowing many regular database tasks to be automated, reducing human intervention, freeing labor, and essentially, it's crontab with Linux, business Mission management software like Autosys, UC4, Just as their domain is different, Oracle Scheduler is focused on automating management, maintenance, and monitoring of Oracle database jobs. This a

MySQL Event Scheduler Usage Introduction Since MySQL5.1.0, a very distinctive feature has been added – Event Scheduler (Scheduler), which can be used to perform certain tasks on a timed basis and can be seen as a time-based trigger.First, openEvent scheduling is turned off by default, enabling the executableSET GLOBAL event_scheduler=1; SET GLOBAL Event_

task_stoped or Task_dead state, or the system call enters the task_interruptible state.4. How the process is dispatched 4.1 CFS SchedulerAs the kernel version changes, the O (1) Scheduler is replaced by the CFS (fully fair Scheduler) after the Linux Kernel 2.6.23 release.CFS vruntime is used to measure the priority of the process. It calculates the following formulavruntime = 进程被分配的运行时间 * NICE_0_LOAD / 进程权