On Wed, 17 Sep 2008, Manlio Perillo wrote:
Jefferson Heard ha scritto:
the weight of a full unix process plus the weight of the python interpreter in terms of memory,
With copy on write some memory can be saved (if you preload all the required modules in the master process).
The kernel data structures and writable pages supporting an OS-level process add up to dozens of KB whereas a language-level concurrent context should require about 1KB.
context switching times,
That's probabily the same as thread switching time.
Competent language-level concurrency support (as in Haskell and Erlang)
makes a context switch about as expensive as a function call, thousands of
times faster than an OS-level process switch.
Tony.
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f.anthony.n.finch