Re: checkpointer continuous flushing
От | Fabien COELHO |
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Тема | Re: checkpointer continuous flushing |
Дата | |
Msg-id | alpine.DEB.2.10.1509092005380.21932@sto обсуждение исходный текст |
Ответ на | Re: checkpointer continuous flushing (Robert Haas <robertmhaas@gmail.com>) |
Ответы |
Re: checkpointer continuous flushing
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Список | pgsql-hackers |
>>> (3) posix_fadvise on Linux is a bad idea... the good news is that it >>> is not needed there:-) How good or bad an idea it is on other system >>> is an open question... >> >> I don't know what is the best way to verify that, if some body else has >> access to such a m/c, please help to get that verified. > > Why wouldn't we just leave it out then? Putting it in when the one > platform we've tried it on shows a regression makes no sense. We > shouldn't include it and then remove it if someone can prove it's bad; > we should only include it in the first place if we have good benchmarks > showing that it is good. > > Does anyone have a big Windows box they can try this on? Just a box with a disk would be enough, it does not need to be big! As I wrote before, FreeBSD would be a good candidate because the posix_fadvise seems much more reasonable than on Linux, and should be profitable, so it would be a pity to remove it. -- Fabien.
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