18 lines
974 B
Text
18 lines
974 B
Text
The "forks" pragma allows a developer to use threads without having to
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have a threaded perl, or to even run 5.8.0 or higher. There were a number
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of goals that I am trying to reach with this implementation.
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The standard Perl 5.8.0 threads implementation is very memory consuming,
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which makes it basically impossible to use in a production environment,
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particularly with mod_perl and Apache. Because of the use of the standard
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Unix fork() capabilities, most operating systems will be able to use the
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Copy-On-Write (COW) memory sharing capabilities (whereas with the standard
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Perl 5.8.0 threads implementation, this is thwarted by the Perl interpreter
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cloning process that is used to create threads). The memory savings have
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been confirmed.
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You should be able to run threaded applications unchanged by simply making
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sure that the "forks" and "forks::shared" modules are loaded,
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e.g. by specifying them on the command line.
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WWW: http://search.cpan.org/dist/forks/
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