python simply not scaleable enough for google?

Nobody nobody at
Sat Nov 21 20:22:36 CET 2009

On Fri, 20 Nov 2009 09:51:49 -0800, sturlamolden wrote:

> You can make a user-space scheduler and run a 100000 tasklets on a
> threadpool. But there is a GIL in stackless as well.
> Nobody wants 100000 OS threads, not with Python, not with Go, not with
> C.
> Also note that Windows has native support for "taskelets", regardless
> of language. They are called "fibers" (as opposed to "threads") and
> are created using the CreateFiber system call. I would not be
> surprised if Unix'es has this as well. We do not need Stackless for
> light-weight threads. We can just take Python's threading modules' C
> code and replace CreateThread with CreateFiber.

POSIX.1-2001 and POSIX.1-2004 have makecontext(), setcontext(),
getcontext() and swapcontext(), but obsoleted by POSIX.1-2008.

They are available on Linux; I don't know about other Unices.

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