Re: single task postgresql
От | Oleg Bartunov |
---|---|
Тема | Re: single task postgresql |
Дата | |
Msg-id | Pine.GSO.4.44.0202271606510.7901-100000@ra.sai.msu.su обсуждение исходный текст |
Ответ на | Re: single task postgresql (mlw <markw@mohawksoft.com>) |
Список | pgsql-hackers |
On Wed, 27 Feb 2002, mlw wrote: > Oleg Bartunov wrote: > > > > we have to support earlier windows which have no shared memory support. > > I'm pretty sure it could a configuration option then. Using a file is just > plain stupid. "Every" version of Windows has supported shared memory in one > form or another. > > What version are you wishing to support which the cygwin guys claim does not > have shared memory? We've tried windows 98 and would like to have support for ALL versions beginning from W95. > > I'm prety sure I can write a shared memory interface for Windows which should > work across all "supported" versions. > > (BTW I have been a Windows developer since version 1.03.) > great ! We have had success to run our OpenFTS under Windows but need postgresql runs a bit faster. It'd be great if you write such interface, so postgresql could run under older windows without shared memory. btw, BeoS seems is supported in similar way. I think people would appreciate this. There are still many old hardware with Windows95 installed which could be used for desktop application based on postgresql. > > > > > > On Tue, 26 Feb 2002, mlw wrote: > > > > > Oleg Bartunov wrote: > > > > > > > > Having frustrated with performance on Windows box I'm wondering if it's > > > > possible to get postgresql optimized for working without shared memory, > > > > say in single-task mode. It looks like it's shared memory emulation on disk > > > > (by cygipc daemon) is responsible for performance degradation. > > > > In our project we have to use Windows for desktop application and it's > > > > single task, so we don't need shared memory. In principle, it's possible > > > > to hack cygipc, so it wouldn't emulate shared memory and address calls > > > > to normal memory, but I'm wondering if it's possible from postgres side. > > > > > > > > Regards, > > > > > > How does cygwin do shared memory on Windows? Windows support real shared > > > memory, surely the cygwin guys are using "real" shared memory. Are you sure > > > that this is the problem? If so, might we not be able to use a few > > > macros/#ifdefs to do it right? > > > > > > I'll be up for that if you guys don't mind some "ifdef/endif" stuff here and > > > there. > > > > > > > Regards, > > Oleg > > _____________________________________________________________ > > Oleg Bartunov, sci.researcher, hostmaster of AstroNet, > > Sternberg Astronomical Institute, Moscow University (Russia) > > Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/ > > phone: +007(095)939-16-83, +007(095)939-23-83 > Regards, Oleg _____________________________________________________________ Oleg Bartunov, sci.researcher, hostmaster of AstroNet, Sternberg Astronomical Institute, Moscow University (Russia) Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/ phone: +007(095)939-16-83, +007(095)939-23-83
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