4 ms·

Redis can now be multi threaded in custom modules

• dvirsky 9y ago
  Sort of - the model it supports is not really multi-threaded. The modules can spawn threads, and acquire a "GIL" when they want to touch actual Redis data - thus only one thread at a time actually "owns" the entire Redis instance. This allows long running queries to do primitive cooperative multi-tasking, releasing the GIL and letting other queries have a chance; But there is no real parallel data access. You will only gain real parallelism if you have actual work to do that does not touch the data directly when a thread is not touching the GIL. There aren't many cases that this applies to - usually copying the data aside to do work on it is not worth the gain of parallelism.