Subject: Re: changing default for UFS_DIRHASH and NEW_BUFQ_STRATEGY
To: None <tech-kern@netbsd.org>
From: Sean Davis <dive-nb@endersgame.net>
List: tech-kern
Date: 06/04/2005 05:54:43
On Fri, Jun 03, 2005 at 09:26:07PM -0400, Thor Lancelot Simon wrote:
> On Fri, Jun 03, 2005 at 01:30:26PM -0400, Sean Davis wrote:
> > 
> > Are you running with softdeps enabled, too? I've had softdeps and
> > new_bufq_strategy bring this system to it's knees when doing a lot of stuff
> > at once - but running without softdeps, without new_bufq_strategy,
> > everything works just fine.
> 
> I can't reproduce what you're describing, but I note that you seem to be
> supporting a claim about the effect of one variable by using evidence in
> which you explicitly admit that it is confounded with another variable.

I've had it happen with just softdep, and with just new_bufq. The effects
are more severe with just new_bufq.

> That is not very persuasive to me.

I honestly couldn't care less if I "persuade" you. I'm just saying that
softdep & new_bufq are not wins on my system. Whether or not it changes your
worldview is up to you.

-Sean