scheduling

问题 In python how to implement a thread which runs in the background (may be when the module loads) and calls the function every minute Monday to Friday 10 AM to 3 PM. For example the function should be called at: 10:01 AM 10:02 AM 10:03 AM . . 2:59 PM Any pointers? Environment: Django Thanks 回答1: Django is a server application, which only reacts to external events. You should use a scheduler like cron to create events that call your django application, either calling a management subcommand or

问题 Searching answers here for "thread affinity", I see a lot of interest in doing it but little justification for it save possibly getting stable QueryPerformanceTimer results. Assuming a modern OS and a modern 2-4 socket workstation/server class machine with modern 4-6 core CPUs, what good reasons would anyone have for thinking they know better than their OS's scheduler ? Are there any real world situations where taking more control of thead affinity is the right thing to do ? What sort of

问题 As a possible alternative to using cron jobs, I found the sleep function. I have never used this before. If I tell my script to run inside a kind of loop, and inside that loop I have an instruction like this # sleeps for 86400 seconds or one day sleep(86400); will my script be launched again after 1 day? even if don't access it on my web browser again within that period? I think is not possible, but I'm here to ask an expert about it. 回答1: The main problem with using PHP this way is, in my

问题 Can anyone recommend a free asp.net control that I can use for the following: Weekdays Monday-Saturday along the top row Time of day along left hand side Template fields for the actual data Databindable Cells span the rows based on the start time and end time Here is a control that I found that is pretty good, but I am trying to find alternatives: Databound Schedule controls 回答1: DayPilot is a pretty good general purpose calendaring/schedule control. The full version is not free, but there is

问题 I'm making a Chaos Monkey program and I want it to clean up after itself after a certain period of time. I'd like a simple way to queue up cleanup tasks to be called a set amount of time in the future. I think I could do something with actors and a lot of hand-waving but that seems like the wrong approach. Is there a better tool for this task in the Scala standard library? 回答1: I have written a scheduling DSL in Scala called foil, which is freely available on Github. It will work with either

问题 I wrote a test program which consists of just an infinite loop with some computations inside, and performs no I/O operations. I tried starting two instances of the program, one with a high niceness value, and the other with a low niceness value: sudo nice -n 19 taskset 1 ./test sudo nice -n -20 taskset 1 ./test The taskset command ensures that both programs execute on the same core. Contrary to my expectation, top reports that both programs get about 50% of the computation time. Why is that?

问题 I wrote a test program which consists of just an infinite loop with some computations inside, and performs no I/O operations. I tried starting two instances of the program, one with a high niceness value, and the other with a low niceness value: sudo nice -n 19 taskset 1 ./test sudo nice -n -20 taskset 1 ./test The taskset command ensures that both programs execute on the same core. Contrary to my expectation, top reports that both programs get about 50% of the computation time. Why is that?

问题 Does the Linux scheduler prefer to run the child process after fork() to the father process? Usually, the forked process will execute exec of some kind so, it is better to let child process to run before father process(to prevent copy on write). I assume that the child will execute exec as first operation after it will be created. Is my assumption (that the scheduler will prefer child process) correct. If not, why? If yes, is there more reasons to run child first? 回答1: To quote The Linux

问题 I need scheduling functionality on my .NET MVC website and I came across Quartz.net library which can do exactly what I need. The problem is I'm running my site on a hosting (GoDaddy) and when I added Quartz.net 2.0.1 to my project I've got "that assembly does not allow partially trusted callers" exception. After some research I found out that many people have the same problem and some solved it by removing Common.Logging library from Quartz.net. I followed some of the advice and removed all

问题 I'm looking for a custom visual component for Delphi 7 which handles scheduling on a calendar. I'm not looking for an actual calendar, and I'm definitely not looking for some overhauled licensed component. I just want a simple visual component, with a trackbar-like list of items. For example, along the left, I could have employee names listed. Each of those records stretches across the control. To the right, the X axis represents time, and each employee (Y Axis) record could have multiple