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* workerthread: adjusted to use a blocking queue, it will receive termination ↵Sebastian Thiel2010-06-085-34/+52
| | | | events only with its queue, with boosts performance into brigt green levels
* Revised task deletion works well, adjusted test to be creating new tasks all ↵Sebastian Thiel2010-06-082-58/+31
| | | | the time instead of reusing its own one, it was somewhat hard to manage its state over time and could cause bugs. It works okay, but it occasionally hangs, it appears to be an empty queue, have to gradually put certain things back in, although in the current mode of operation, it should never have empty queues from the pool to the user
* task: now deletes itself once its done - for the test this doesn't change a ↵Sebastian Thiel2010-06-082-48/+31
| | | | thing as the task deletes itself too late - its time for a paradigm change, the task should be deleted with its RPoolChannel or explicitly by the user. The test needs to adapt, and shouldn't assume anything unless the RPoolChannel is gone
* Its getting better already - intermediate commit before further chaning the ↵Sebastian Thiel2010-06-085-34/+38
| | | | task class
* queue: adjusted queue to be closable ( without own testing yet, except for ↵Sebastian Thiel2010-06-082-50/+62
| | | | the pool which runs it ) - its not yet stable, but should be solvable.
* The new channeldesign actually works, but it also shows that its located at ↵Sebastian Thiel2010-06-083-67/+79
| | | | the wrong spot. The channel is nothing more than an adapter allowing to read multiple items from a thread-safe queue, the queue itself though must be 'closable' for writing, or needs something like a writable flag.
* both versions of the async queue still have trouble in certain situations, ↵Sebastian Thiel2010-06-081-21/+56
| | | | at least with my totally overwritten version of the condition - the previous one was somewhat more stable it seems. Nonetheless, this is the fastest version so far
* test implementation of async-queue with everything stripped from it that ↵Sebastian Thiel2010-06-081-5/+48
| | | | didn't seem necessary - its a failure, something is wrong - performance not much better than the original one, its depending on the condition performance actually, which I don't get faster
* Task scheduled items lock now uses a dummy lock in serial mode, improving ↵Sebastian Thiel2010-06-072-1/+19
| | | | | | its performance considerably. Channels now use the AsyncQueue, boosting their throughput to about 5k items / s - this is something one can work with, considering the runtime of each item should be large enough to keep the threads busy. This could be a basis, further testing needed
* Channel now uses the AsyncQueue, boosting performance by factor 4, its a startSebastian Thiel2010-06-071-2/+2
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* introduced a new counter keeping track of the scheduled tasks - this prevent ↵Sebastian Thiel2010-06-073-5/+59
| | | | unnecessary tasks to be scheduled as we keep track of how many items will be produced for the task at hand. This introduces additional locking, but performns well in multithreaded mode. Performance of the master queue is still a huge issue, its currently the limiting factor, as bypassing the master queue in serial moode gives 15x performance, wich is what I would need
* improved testing to test the actual async handling of the pool. there are ↵Sebastian Thiel2010-06-073-5/+30
| | | | still inconsistencies that need to be fixed, but it already improved, especially the 4-thread performance which now is as fast as the dual-threaded performance
* task: Fixed incorrect handling of channel closure. Performance is alright ↵Sebastian Thiel2010-06-072-25/+39
| | | | for up to 2 threads, but 4 are killing the queue
* Moved pool utilities into util module, fixed critical issue that caused ↵Sebastian Thiel2010-06-074-126/+176
| | | | havok - lets call this a safe-state
* added high-speed locking facilities, allowing our Queue to be faster, at ↵Sebastian Thiel2010-06-072-58/+186
| | | | least in tests, and with multiple threads. There is still an sync bug in regard to closed channels to be fixed, as the Task.set_done handling is incorrecft
* Added task order cache, and a lock to prevent us walking the graph while ↵Sebastian Thiel2010-06-072-6/+23
| | | | | | changing tasks Now processing more items to test performance, in dual-threaded mode as well, and its rather bad, have to figure out the reason for this, probably gil, but queues could help
* changed scheduling and chunksize calculation in respect to the ↵Sebastian Thiel2010-06-071-76/+137
| | | | task.min_count, to fix theoretical option for a deadlock in serial mode, and unnecessary blocking in async mode
* pool.consumed_tasks: is now a queue to be thread safe, in preparation for ↵Sebastian Thiel2010-06-072-11/+23
| | | | | | multiple connected pools Reduced waiting time in tests to make them complete faster
* pool: First version which works as expected in async mode. Its just using a ↵Sebastian Thiel2010-06-074-54/+55
| | | | single task for now, but next up are dependent tasks
* channel.read: enhanced to be sure we don't run into non-atomicity issues ↵Sebastian Thiel2010-06-061-17/+72
| | | | related to our channel closed flag, which is the only way not to block forever on read(0) channels which were closed by a thread 'in the meanwhile'
* Plenty of fixes in the chunking routine, made possible by a serialized ↵Sebastian Thiel2010-06-063-17/+58
| | | | chunking test. Next up, actual async processing
* First step of testing the pool - tasks have been separated into a new module ↵Sebastian Thiel2010-06-065-111/+246
| | | | including own tests, their design improved to prepare them for some specifics that would be needed for multiprocessing support
* thread: adjusted worker thread not to provide an output queue anymore - this ↵Sebastian Thiel2010-06-063-37/+127
| | | | | | | is handled by the task system graph: implemented it including test according to the pools requirements pool: implemented set_pool_size
* Improved pool design and started rough implementation, top down to learn ↵Sebastian Thiel2010-06-063-68/+290
| | | | while going. Tests will be written soon for verification, its still quite theoretical
* Renamed mp to async, as this is a much better name for what is actually ↵Sebastian Thiel2010-06-054-0/+428
going on. The default implementation uses threads, which ends up being nothing more than async, as they are all locked down by internal and the global interpreter lock