threading and multicores, pros and cons

[John Nagle]

    If locking is expensive on x86, it's implemented wrong.
It's done right in QNX, with inline code for the non-blocking
case.  Not sure about the current libraries for Linux, but
by now, somebody should have gotten this right.

				John Nagle

Paul Rubin wrote:
> Maric Michaud <maric at aristote.info> writes:
> 
>>>"Some time back, a group did remove the GIL from the python core, and
>>>implemented locks on the core code to make it threadsafe. Well, the
>>>problem was that while it worked, the necessary locks it made single
>>>threaded code take significantly longer to execute."