Re: SCSI vs. IDE performance test
От | list-pgsql-general@news.cistron.nl ("Miquel van Smoorenburg" ) |
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Тема | Re: SCSI vs. IDE performance test |
Дата | |
Msg-id | bnter5$730$1@news.cistron.nl обсуждение исходный текст |
Ответ на | Re: SCSI vs. IDE performance test (Bruce Momjian <pgman@candle.pha.pa.us>) |
Список | pgsql-general |
In article <87n0blgs9g.fsf@stark.dyndns.tv>, Greg Stark <gsstark@mit.edu> wrote: >Currently the linux-kernel folks are talking about how to integrate an IDE >SYNC operation into the world. It looks like filesystems with journals will >issue an IDE SYNC to checkpoint the journal, but it doesn't really look like >they're planning to hook it into fsync unless people speak up and explain what >databases need in that regard. However SYNC flushes the entire cache and means >that all other writes are blocked until the SYNC completes. > >http://www.ussg.iu.edu/hypermail/linux/kernel/0304.1/0450.html Also, if you're interested in this kind of stuff and what's going on in the Linux kernel development circles, Google for "ide write barrier". For example http://lkml.org/lkml/2003/10/13/87 Mike.
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