Doug Ledford wrote:
> I try to keep the drivers working
> at a basic level, but until I'm done, benchmarking is pretty much a waste
> of time I think)
Benchmarking is integral in what we're doing right now. We need to
make quick decisions about what is good or bad before the freeze.
This patch makes my machine unusable for anything that isn't in the
pagecache. A simple "make oldconfig" on a cold tree takes minutes to
complete. My grep test got an order of magnitude worse. If we have
to keep this code, can we just make the default queue HUGE for now?
Will that work around it?
A bunch of the AIO people use QLogic cards, which I'm sure are broken
by this as well. I'm going to back this patch out for all the testing
trees I do, and I suggest anyone who cares about I/O on SCSI
(excluding aic7xxx) after 2.5.41 do the same.
-- Dave Hansen haveblue@us.ibm.com- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Tue Oct 15 2002 - 22:00:40 EST