[Python-ideas] Python 3000 TIOBE -3%

Sturla Molden sturla at molden.no
Sun Feb 12 23:24:32 CET 2012

Den 12.02.2012 21:56, skrev Mike Meyer:
> The reason those systems did this was because creating a process was 
> *expensive*. That's also why the Multics folks looked at threads. The 
> Unix fork/exec pair was cheap and flexible, allowing the creation of a 
> command processor that supported easy backgrounding, pipes, and IO 
> redirection. Fork has since gotten more expensive, in spite of the 
> ongoing struggles to keep it cheap.

The "expensive" argument is also why the Windows API has no fork, 
although the Windows NT-kernel supports it. (There is even a COW fork in 
Windows' SUA.) I think fork() is the one function I have missed most 
when programming for Windows. It is the best reason to use SUA or Cygwin 
instead of the Windows API.


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