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. -- f.anthony.n.finch <[EMAIL PROTECTED]> http://dotat.at/ HUMBER THAMES DOVER WIGHT PORTLAND PLYMOUTH: EAST 3 OR 4, INCREASING 5 AT TIMES. SLIGHT. SHOWERS. GOOD. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
