threadpool

问题 OK so I have a GUI Java application that permits the user to select and launch between 5-500 software devices each represented by a Thread. The Threads continuously update the GUI with information. The user can select threads and pause, resume or kill them. All the information on threads and thread pools, interrupts, Future.... I just got lost and wanted to set fire to the internet =) What I need is some clear guidance on the standard way forward for this. I have below the outline of my

问题 In the example provided at http://marcio.io/2015/07/handling-1-million-requests-per-minute-with-golang/ which has been cited in a lot of places. func (d *Dispatcher) dispatch() { for { select { case job := <-JobQueue: // a job request has been received go func(job Job) { // try to obtain a worker job channel that is available. // this will block until a worker is idle jobChannel := <-d.WorkerPool // dispatch the job to the worker job channel jobChannel <- job }(job) } } } Wouldn't the worker

问题 I've been playing around with Windows' (new?) thread pool API. I've been following through with the example in the Using the Thread Pool Functions and I've been taking a good hard look at the API on MSDN. There's something I don't get about cleanup groups. When invoking the SetThreadpoolCallbackCleanupGroup(), the third parameter is described as The cleanup callback to be called if the cleanup group is canceled before the associated object is released. The function is called when you call

问题 I'm new in network programming and want to create new socket thread base on a request. My thread send request via tcp/ip socket and waiting the response. How can i using threadpool to create and run threads parallel ? Can anyone show me the sample ? Thank ! 回答1: Have a look at this: http://msdn.microsoft.com/en-us/library/fx6588te.aspx 来源： https://stackoverflow.com/questions/4020607/how-to-using-threadpool-to-run-socket-thread-parallel

问题 I'm working on making the Dijkstra algorithm parallel. Per node threads are made to look at all the edges of the current node. This was made parallel with threads but there is too much overhead. This resulted in a longer time than the sequential version of the algorithm. ThreadPool was added to solve this problem but i'm having trouble with waiting until the tasks are done before I can move on to the next iteration. Only after all tasks for one node is done we should move on. We need the

问题 Running uWSGI with $ cat /etc/uwsgi/uwsgi.cfg [uwsgi] callable = app socket = /var/run/arivale-service/uwsgi.sock chmod-socket = 666 pidfile = /var/run/arivale-service/uwsgi.pid master = true enable-threads = true single-interpreter = true thunder-lock need-app processes = 4 Without lazy-apps enabled, a request to the calling following endpoint hangs import boto3 # ...irrelevant imports from multiprocessing.dummy import Pool as ThreadPool POOL = ThreadPool(6) # ...irrelevant setup def get_ecs

问题 i'm working on android application which have communication with Bluetooth BLE device (with custom protocol which was developed specific for our product). after i connect to the device i have callback public void onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) which get triggered each time the device want to send me data. In app architecture we have actions (for example getDeviceStatus() ), the protocol working in following way: phone connect to device

问题 I have an ASP.NET web app and it's using 5GB memory running on 64bit Windows 7 machine with 8GB memory without any problem. However, when I create a new C# console application on the same machine and reuse the same components the web app uses, the console app runs out of memory at about 1.6GB (by looking at System.Environment.WorkingSet and System.Diagnostics.Process.GetCurrentProcess().WorkingSet64). There are still plenty of physical memory left. It repros on 2 different machines. Both web

问题 When I invoke my multithreaded perl script, on a few occassions, it throws some exception similar to the following. I am sorry that I could not share code. But if really needed I can try to build a snippet (if really really required). Because I guess this should have some theoretical answer. *** glibc detected *** perl: double free or corruption (!prev): 0x00007f775401e9a0 *** ======= Backtrace: ========= /lib64/libc.so.6[0x3d74c75e66] /lib64/libc.so.6[0x3d74c789b3] /lib64/libc.so.6

问题 I'm doing some experiments on C++ multithreading and I have no idea how to solve one problem. Let's say we have thread pool, that process user requests using existing thread and creates new thread, when no free thread available. I've created command_queue thread-safe class, which have push and pop methods. pop waits while queue is empty and returns only when command is available or timeout occurred. Now it's time to implement thread pool. The idea is to make free threads sleep for some amount