Re: Windows x64 Port
От | Andrei Kovalevski |
---|---|
Тема | Re: Windows x64 Port |
Дата | |
Msg-id | 473B5634.5000702@commandprompt.com обсуждение исходный текст |
Ответ на | Re: Windows x64 Port (Magnus Hagander <magnus@hagander.net>) |
Список | pgsql-general |
Hello, Magnus Hagander wrote: > Willem Buitendyk wrote: > >> Is there any plan to port Postgresql to windows x64? I can currently >> run Postgresql as 32 bit inside Vista 64 - would I see better >> performance if Postgresql was running under 64 bit. My biggest concern >> is memory - at 32 bit is not Postgresql limited to 4GB in windows? >> > > It's something we hope will be worked on for 8.4, but there are no firm > plans. > > It's limited to 2Gb, actually, but *per process*. Since each backend is > it's own process, you can use way more than 2Gb RAM on a 64-bit system. > You can't use it for shared memory, but you can use it for local backend > memory (work_mem). But you'll need a lot of backends to do it, and you > will see other pieces of performance get worse with loads of backend. > > Oh, and your RAM will still be used for disk cache, since that's managed > by the kernel. > I'm wondering - what kind of problems do you expect with such port? By the way, are there any benchmark results to compare 32 and 64 bit version on Linux? Thanks, Andrei.
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