Re: [2.4.17/18pre] VM and swap - it's really unusable

Daniel Phillips
2002-01-09T09:45:11Z

On January 9, 2002 10:26 am, Andrew Morton wrote:
> Daniel Phillips wrote:
> > By the way, did you check for latency in directory operations?
>
> Yes. They can be very bad for really large directories. Scheduling
> on the found-in-cache case in bread() kills that one easily for most
> local filesystems. There may still be a problem in ext2.

A indexed directory won't have that problem - I'll get to finishing off the
htree patch pretty soon[1]. In any event, the analogous technique will work:
a schedule point in ext2_bread.

[1] Wli's hash work is happening at a convenient time.

--
Daniel