Messages in this thread | | | Date | Thu, 17 Jun 2010 12:43:43 +0100 | From | Alan Cox <> | Subject | Re: [PATCH 09/12] irq: implement IRQ expecting |
| |
On Thu, 17 Jun 2010 13:23:27 +0200 Tejun Heo <tj@kernel.org> wrote:
> On 06/17/2010 01:12 PM, Thomas Gleixner wrote: > >> Hmmm.... oh, I see. Wouldn't it be much better to use moving avg of > >> IRQ durations instead of letting the driver specify it? Drivers are > >> most likely to just hard code it and It's never gonna be accurate. > > > > Right, but that's probably more accurate than the core code heuristics > > ever will be. > > Eh, not really. For ATA at least, there will be three different > classes of devices. SSDs, hard drives and optical devices
At least four: It may also be battery backed RAM.
Alan
| |