Re: Question regarding the database page layout.
| От | Ryan Bradetich |
|---|---|
| Тема | Re: Question regarding the database page layout. |
| Дата | |
| Msg-id | e739902b0809020906k42672e31oca2c9a1ed48aa1b6@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Question regarding the database page layout. (Martijn van Oosterhout <kleptog@svana.org>) |
| Список | pgsql-hackers |
Hello Martijn, > You need to arrange testing on an architechture that has strict > alignment reuiqrements. For example i386 doesn't care about alignment > at all and will anything from anywhere, with performance degradation. > > Other architechtures will simply throw exceptions, that's the smoke > test. From other comments in this thread, I still have quite a bit of work ahead of me :) If I can accomplish this, then I will run it on a different architecture. I have access to a parisc-linux and a powerpc system. > Also, what's the performance cost? Not sure yet. My goal would be 0 impact on 32-bit system and something small on 64-bit systems that would hopefully be overcome by a performance gain in IO. Thanks for your feedback. - Ryan
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