Re: ice-broker scan thread
От | Martijn van Oosterhout |
---|---|
Тема | Re: ice-broker scan thread |
Дата | |
Msg-id | 20051129175217.GG31333@svana.org обсуждение исходный текст |
Ответ на | Re: ice-broker scan thread (David Boreham <david_list@boreham.org>) |
Список | pgsql-hackers |
On Tue, Nov 29, 2005 at 10:28:57AM -0700, David Boreham wrote: > Actually, after reading up on the current state of things, I'm not sure you > can even get POSIX aio on top of kernel aio in Linux. There are also a > few limitations in the 2.6 aio implementation that might prove troublesome: > for example it only works with O_DIRECT. Which is bizarre because it's semantically equivalent to having a seperate thread doing the read() and sending you a signal when it's done. What I'm thinking of testing is a join across two large table so there is actually more than one outstanding request at a time. But it's irritating to have to code to a special api... Have a nice day, -- Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/ > Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a > tool for doing 5% of the work and then sitting around waiting for someone > else to do the other 95% so you can sue them.
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