Re: [PATCH] backing dev unplugging

Jens Axboe
2004-03-10T20:17:48Z

On Wed, Mar 10 2004, Andrew Morton wrote:
> Jens Axboe <axboe@suse.de> wrote:
> >
> > Here's a first cut at killing global plugging of block devices to reduce
> > the nasty contention blk_plug_lock caused. This introduceds per-queue
> > plugging, controlled by the backing_dev_info.
>
> This is such an improvement over what we have now it isn't funny.

It is pretty scary, once I dove into it...

--
Jens Axboe