Re: 2.5.46-mm2

[Andrew Morton]

William Lee Irwin III wrote:
> 
> On Sun, Nov 10, 2002 at 03:32:08PM +0100, Jens Axboe wrote:
> >>> I've attached a small document describing the deadline io scheduler
> >>> tunables. stream_unit is not in Andrew's version, yet, it uses a hard
> >>> defined 128KiB. Also, Andrew didn't apply the rbtree patch only the
> >>> tunable patch. So it uses the same insertion algorithm as the default
> >>> kernel, two linked lists.
> 
> On Sun, Nov 10 2002, William Lee Irwin III wrote:
> >> Okay, then I'll want the rbtree code for benchmarking.
> 
> On Sun, Nov 10, 2002 at 03:57:57PM +0100, Jens Axboe wrote:
> > Sure, I want to talk akpm into merging the rbtree code for real. Or I
> > can just drop you my current version, if you want.
> 
> Go for it, I'm just trying to get tiobench to actually run (seems to
> have new/different "die from too many threads" behavior wrt. --threads).
> Dropping me a fresh kernel shouldn't slow anything down.

It could be the procps thing?  `tiobench --threads 256' shows up as a
single process in top and ps due to the new thread consolidation feature.
If you run `ps auxm' or hit 'H' in top, all is revealed.  Not my fave
feature that.

> Bill
> 
> P.S.:   elvtune gets hung for a long time, it says:
>         ioctl get: Inappropriate ioctl for device
>         did it schedule with something held and get out of deadlock free?

BLKELVGET/SET was removed
 
> P.P.S:  kgdb broke wchan reporting... investigating

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