FMQ | A fast single-direction queue for multiprocessing | Architecture library
kandi X-RAY | FMQ Summary
kandi X-RAY | FMQ Summary
This project is inspired by the use of multiprocessing.Queue (mp.Queue). mp.Queue is slow for large data item because of the speed limitation of pipe (on Unix-like systems). With mp.Queue handling the inter-process transfer, FMQ implements a stealer thread, which steals an item from mp.Queue once any item is available, and puts it into a Queue.Queue. Then, the consumer process can fetch the data from the Queue.Queue immediately. The speed-up is based on the assumption that both producer and consumer processes are compute-intensive (thus multiprocessing is neccessary) and the data is large (eg. >50 227x227 images). Otherwise mp.Queue with multiprocessing or Queue.Queue with threading is good enough.
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Top functions reviewed by kandi - BETA
- starts a daemon process
- Initialize the queue .
- Return the size of the queue .
- Put an item into the queue .
- Delete the object
- Get item from queue .
- Return True if all queues are empty
- Returns True if the queue is full .
FMQ Key Features
FMQ Examples and Code Snippets
Community Discussions
Trending Discussions on FMQ
QUESTION
I'm programming a little app via Android Studio. I'm working with 2 activities. My app stops responding as soon as my first activity opens the second one (When I'm running the app through the emulator). I realized that the problem first appeared as I inserted the for loop in my second activity. But the audio output of the notes is still done in the background.
Would be very nice if you could help me here.
Here the code:
...ANSWER
Answered 2020-Nov-12 at 13:55You are running
QUESTION
I'm using the qReader library which according to my logs works as intended, contrary to the big error log, except when trying to change fragment using viewPager.setCurrentItem(0)
in the MainFragment. I'm hoping someone recognises these errors and can tell me if it's relevant to my problem of changing fragment. If no one recognises the errors then I'm guessing they're library specific and Ill open an issue on the library's github.
Log Summary
- SubFragment2 shows (YES)
- SubFragment2 scans QRCode and calls returnData() (YES)
- returnData() calls
mainFragmentInterface.onQRCodeScanned
(YES) - setCurrentItem(0) in onQRCodeScanned() runs (YES)
- case 0 in getItem() in FragmentPagerAdapter runs (YES)
- SubFragment 1 shows (NO)
Error Log
...ANSWER
Answered 2020-Jan-23 at 17:31It's not necessary to call CameraSource.stop() from the UI thread, but due to an implementation detail it should not be called from the thread that executes receiveDetections. The stop() code waits for this thread to finish, so calling it this way would create a deadlock.
Does CameraSource.stop() require to be called from UI Thread?
I had to release/stop the CameraSource object from the UI Thread to avoid the deadlock mentioned above.
QUESTION
I'm trying to create a model of an asynchronous electrical motor in scilab, and display graphs of how the rpm, currents and torque change over time. It looks quite long but you don't need to read it all.
...ANSWER
Answered 2017-Dec-03 at 00:09As noted in the comments, y(12)
is the integral of Me
over t
.
If you want Me
, you just need to differentiate it:
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