Re: IBM HDAPS things are looking up

dean gaudet
2005-07-04T18:37:04Z

On Mon, 4 Jul 2005, Alejandro Bonilla wrote:

> Do you think that the kernel will STOP, HOLD and park the head in less than
> a second? OR on the time we need?

this is why the windows driver uses heuristics to decide when the laptop
is possibly unstable and *may* fall soon... because it takes something
like 700ms to actually park. (a url floated by with the whitepaper-level
details at some point.)

btw -- my usual box is a t42p running winxp, and i disable the parking
code... whatever my normal usage is tends to trigger the parking
heuristics too readily. it's a cool idea, but i'm skeptical of its
real-world value.

as for other details it's trivial to lock the daemon in memory and run it
at nice -4 to get a head start on parking even when at 100% cpu and under
memory load.

-dean