Re: [00/17] Large Blocksize Support V3

William Lee Irwin III
2007-04-27T12:58:28Z

William Lee Irwin III wrote:
>> I readily concede that seeks are most costly. Yet memory contiguity
>> remains rather influential.
>> Witness the fact that I'm now being called upon a second time to
>> adjust the order in which mm/page_alloc.c returns pages for the
>> sake of implicitly establishing IO contiguity (or otherwise
>> determining why things are coming out backward now).

On Fri, Apr 27, 2007 at 08:22:07PM +1000, Nick Piggin wrote:
> Just a random aside question... doesn't Oracle db do direct IO from
> hugepages?

If and when configured to use direct IO and hugepages, yes. It's also
noteworthy thar Oracle has more code than its database.

-- wli