[Haskell-cafe] Python's big challenges, Haskell's big advantages?
manlio_perillo at libero.it
Wed Sep 17 09:22:54 EDT 2008
Arnar Birgisson ha scritto:
> Hi Manlio and others,
> On Wed, Sep 17, 2008 at 14:58, Manlio Perillo <manlio_perillo at libero.it> wrote:
>>> "cloud computing, transactional memory and future multicore processors"
>> Multicore support is already "supported" in Python, if you use
>> multiprocessing, instead of multithreading.
> Well, I'm a huge Python fan myself, but multiprocessing is not really
> a solution as much as it is a workaround.
The real workaround is probably (and IMHO) multithreading (at least
> Python as a language has no
> problem with multithreading and multicore support and has all
> primitives to do conventional shared-state parallelism. However, the
> most popular /implementation/ of Python sacrifies this for
> performance, it has nothing to do with the language itself.
> Stackless Python is an interesting implementation of the CSP+channels
> paradigm though. It has been quite successfully used for a few large
There is also greenlets for cooperative multithreading (but without the
scheduler and channels, so you can integrate it in your event loop like
>> And scalability is not a "real" problem, if you write RESTful web
> Of course scalability is a "real" problem, ask anyone who runs a big
> website. I don't see how RESTful design simply removes that problem.
If you use asynchronous programming and multiprocessing, you *do* solve
most of the problems.
This is what I do in the wsgi module for Nginx.
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