Re: First set of OSDL Shared Mem scalability results, some wierdness ...

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От Tom Lane
Тема Re: First set of OSDL Shared Mem scalability results, some wierdness ...
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Msg-id 27696.1097334448@sss.pgh.pa.us
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Ответ на Re: First set of OSDL Shared Mem scalability results, some wierdness ...  (Kevin Brown <kevin@sysexperts.com>)
Ответы Re: First set of OSDL Shared Mem scalability results, some wierdness ...  (Kevin Brown <kevin@sysexperts.com>)
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Kevin Brown <kevin@sysexperts.com> writes:
> This is why I sometimes wonder whether or not it would be a win to use
> mmap() to access the data and index files --

mmap() is Right Out because it does not afford us sufficient control
over when changes to the in-memory data will propagate to disk.  The
address-space-management problems you describe are also a nasty
headache, but that one is the showstopper.

            regards, tom lane

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