Sturla Molden, 03.06.2014 22:51: > Stefan Behnel wrote: >> So the >> argument in favour is mostly a pragmatic one. If you can have 2-5x faster >> code essentially for free, why not just go for it? > > I would be easier if the GIL or Cython's use of it was redesigned. Cython > just grabs the GIL and holds on to it until it is manually released. The > standard lib cannot have packages that holds the GIL forever, as a Cython > compiled module would do. Cython has to start sharing access the GIL like > the interpreter does. Granted. This shouldn't be all that difficult to add as a special case when compiling .py (not .pyx) files. Properly tuning it (i.e. avoiding to inject the GIL release-acquire cycle in the wrong spots) may take a while, but that can be improved over time. (It's not required in .pyx files because users should rather explicitly write "with nogil: pass" there to manually enable thread switches in safe and desirable places.) Stefan
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