DragonFly kernel List (threaded) for 2009-02
DragonFly BSD
DragonFly kernel List (threaded) for 2009-02
[Date Prev][Date Next]  [Thread Prev][Thread Next]  [Date Index][Thread Index]

Re: I/O Scheduler Framework

From: "Simon 'corecode' Schubert" <corecode@xxxxxxxxxxxx>
Date: Sat, 28 Feb 2009 13:14:59 +0100

First off, thanks for your work on this!

Alex Hornung wrote:
As previously stated this might be a limited approach, but nonetheless
it adds features without much overhead or complication.
What I would like to hear is suggestions on what to do; do we want
stackable (hierarchical) policies? if so, is the proposed approach good
enough? if not, what other possibilities are there? what use cases are
not covered by the suggested approach but are solved in other

I think that we don't understand the whole matter yet. Probably it is too early to come up with a definitive design, so I suggest only implementing the framework for one scheduler per disk and implementing schedulers for this framework. After a while we might understand requirements and scheduler design better and then can reason about how a possible re-design for stackable/interacting schedulers might look like.


  <3 the future  +++  RENT this banner advert  +++   ASCII Ribbon   /"\
  rock the past  +++  space for low €€€ NOW!1  +++     Campaign     \ /
Party Enjoy Relax   |   http://dragonflybsd.org      Against  HTML   \
Dude 2c 2 the max   !   http://golden-apple.biz       Mail + News   / \

[Date Prev][Date Next]  [Thread Prev][Thread Next]  [Date Index][Thread Index]