scheduler

I am investigating how run a process on a dedicated CPU in order to avoid context-switches. On my Ubuntu, I isolated two CPUs using the kernel parameters "isolcpus=3,7" and "irqaffinity=0-2,4-6". I am sure that it is correctly taken into account: $ cat /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-4.8.0-27-generic root=UUID=58c66f12-0588-442b-9bb8-1d2dd833efe2 ro quiet splash isolcpus=3,7 irqaffinity=0-2,4-6 vt.handoff=7 After a reboot, I can check that everything works as expected. On a first console I run $ stress -c 24 stress: info: [31717] dispatching hogs: 24 cpu, 0 io, 0 vm, 0 hdd And on a

In my project I have to use Quartz but I don't know what i do wrong. JobFactory: public class IoCJobFactory : IJobFactory { private readonly IServiceProvider _factory; public IoCJobFactory(IServiceProvider factory) { _factory = factory; } public IJob NewJob(TriggerFiredBundle bundle, IScheduler scheduler) { return _factory.GetService(bundle.JobDetail.JobType) as IJob; } public void ReturnJob(IJob job) { var disposable = job as IDisposable; if (disposable != null) { disposable.Dispose(); } } } QuartzExtensions: public static class QuartzExtensions { public static void UseQuartz(this

I would like to run a python script during the night and so I was thinking of using APScheduler. I'll start running it at 1am of the following night and it will run once every night my scheduler script looks like this (scheduler.py): from apscheduler.scheduler import Scheduler from datetime import datetime, timedelta, time, date def myScript(): print "ok" if __name__ == '__main__': sched = Scheduler() startDate = datetime.combine(date.today() + timedelta(days=1),time(1)) sched.start() sched.add_interval_job(myScript, start_date = startDate, days=1) In the shell, I do: python myScheduler.py &

I've a question regarding pthread implementation on Linux. Suppose a process has 5 threads. Now how does the scheduler sees these threads (or doesnt see at all). e.g. When scheduler is invoked, does it only schedule the main process, and then its the onus of the main process to schedule between each of its thread. Or is it the other way, that scheduler schedules each thread as if it is a separate process. For modern Linux (NPTL pthread implementation), the scheduler schedules threads, a thread is considered a "Light-weight process". pthread_create is implemented in terms of the clone system

I am looking at dart from server side point of view. Is there a scheduler that can execute isolates at a specific time or X times an hour? I am thinking on the lines of Quartz in the Java world. Dart has a few options for delayed and repeating tasks, but I'm not aware of a port of Quartz to Dart (yet... :) Here are the basics: Timer - simply run a function after some delay Future - more robust, composable, functions that return values "in the future" Stream - robust, composable streams of events. Can be periodic. If you have a repeating task, I would recommend using Stream over Timer. Timer