Re: [PATCH] deadline io scheduler

[David S. Miller]

   From: Andrew Morton <[e-mail]>
   Date: Wed, 25 Sep 2002 23:15:58 -0700
   
   I'd like to gain a solid understanding of what these three knobs do.
   Could you explain that a little more?

My basic understanding of fifo_batch is:

1) fifo_batch is how many contiguous requests can be in
   a "set"

2) we send out one write "set" for every two read "sets"

3) a seek works out to "seek_cost" contiguous requests,
   cost wise, this gets subtracted from how many requests
   the current "set" has left that are allowed to be used