changes to kiobuf support in 2.4.(?)4
Quoted 10 lines · Andrea Arcangeli
Quoted 6 lines
At 13000 IOPS, when allocating and freeing on every I/O request, the allocate/free overhead was approximately .6% on a 2 CPU system, where the total overhead was about 25%. So I would theoretically gain 3% (maybe a little better since there is locking involved) if I could avoid the alloc/free.
Ok good.
Andrea
So one more question for now:
Where do I get the O_DIRECT patch?
Oh, and is there a plan to get it into 2.4.X?
(ok, so two questions)
thanks
jeremy