Add a delay between subtasks of a group

Add a delay between subtasks of a group

By : Beatrix
Date : November 19 2020, 03:01 PM
help you fix your problem I am creating a Celery group to execute a bunch of processes in parallel. The following is the code - , Just tested this
code :
def add(x, y):
    return x + y
>>> g = group(add.s(i, i + 1) for i in range(10))
>>> r = g()
>>> r.get()

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Group network requests with delay

Group network requests with delay

By : Alistair King
Date : March 29 2020, 07:55 AM
this one helps. You have a lot of options to perform a parallel running of network operations. It's up to you what to choose. Basically, I can suggest you one of these:
code :
public void onHandleIntent(Intent intent) {
      Runnable hashtagsTask = new Runnable() {
           public void run() {
                for (int i = 0; i < hashtags.size(); i++) {
                     getHashtag(i);// do something, fetch hashtags, etc
      Runnable searchtagsTask = new Runnable() {
           public void run() {
                // do something

      ExecutorService pool = Executors.newFixedThreadPool(3);
      // etc

public void onHandleIntent(Intent intent) {
           new Func2<List<String>, List<String>, Void>() {
                 public Void call(List<String> hashtags, List<String> searchtags) {
                       // do something with your data
                       return null;

 private Observable<List<String>> getHashtags() {
      return Observable.defer(new Func0<Observable<List<String>>>() {
                public Observable<List<String>> call() {
                    // fetch your data
                    return null;
Abort | remove delay() function if video is pauzed (do not delay anymore even if delay is not finished)

Abort | remove delay() function if video is pauzed (do not delay anymore even if delay is not finished)

By : Suresh Phapale
Date : March 29 2020, 07:55 AM
around this issue I make subtitles system for my video. Right now I am at the stage where subtitle - a box with a text should be shown on spesific second and on spesific position and then after x seconds fade out. However I am stuck at this: if I pauze a video when subtitle is still shown - I want it to remain shown but it runs out of that x seconds and hides anyways. , This should work:
code :
How to add delay to a subtask in a group in celery?

How to add delay to a subtask in a group in celery?

By : Sohail Khan
Date : March 29 2020, 07:55 AM
Does that help Task.subtask() has the following Parameters:
task – Either a task class/instance, or the name of a task. args – Positional arguments to apply. kwargs – Keyword arguments to apply. options – Additional options to Task.apply_async().
DSP - Group Delay of an IIR filter

DSP - Group Delay of an IIR filter

By : Grigory Nasledov
Date : March 29 2020, 07:55 AM
I hope this helps . I need to write a program in order to filter a signal for 0.8-3 Hz. Even though I have a working FIR filter this one takes too long and I've decided to change to an IIR filter. I've designed one myself using fdatool in Matlab and I've got the NUM and DEN. The improvement in time would be quite good (the FIR was 125 taps and this one's order is 12). The next step was to move to the C implementation and I've found this nice website http://iowahills.com/Example%20Code/IIRNthOrderImplementation.txt . , The key is this comment:
How to delay my each thread group in JMeter (without using startup delay)

How to delay my each thread group in JMeter (without using startup delay)

By : Antonio Esteves
Date : March 29 2020, 07:55 AM
this will help Add Test Action Sampler to the end of each Thread Group
Configure it as follows:
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