March 20, 2013
7:24 p.m.
On 3/20/13, Raymond Jennings <shentino@gmail.com> wrote:
I've been pondering making a very simple IO scheduler
one step above noop, just keeps everything in a big heap sorted by position and a single cursor bouncing from head to tail shaving off requests in a loop of ascending and descending sweeps.
pardon me for any possible sillyness, but what happen if there are incoming I/O operation at very nearby sectors (or perhaps at the same sector?)? I suppose, the elevator will prioritize them first over the rest? (i.e starving will happen...) -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com