Re: Compression and on-disk sorting
От | Jim C. Nasby |
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Тема | Re: Compression and on-disk sorting |
Дата | |
Msg-id | 20060515201436.GL26212@pervasive.com обсуждение исходный текст |
Ответ на | Re: Compression and on-disk sorting (Martijn van Oosterhout <kleptog@svana.org>) |
Ответы |
Re: Compression and on-disk sorting
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Список | pgsql-hackers |
On Mon, May 15, 2006 at 10:09:47PM +0200, Martijn van Oosterhout wrote: > > In this case the problem is that we want to tell the OS "Hey, if this > > stuff is actually going to go out to the spindles then compress it. And > > by the way, we won't be doing any random access on it, either." But > > AFAIK there's no option like that in fopen... :) > > posix_fadvise(). We don't use it and many OSes don't support it, but it > is there. There's an fadvise that tells the OS to compress the data if it actually makes it to disk? -- Jim C. Nasby, Sr. Engineering Consultant jnasby@pervasive.com Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
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