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Date:      Thu, 3 Apr 2003 10:24:09 +0300
From:      Vallo Kallaste <kalts@estpak.ee>
To:        Jeff Roberson <jroberson@chesapeake.net>
Cc:        current@freebsd.org
Subject:   Re: ULE nice behavior fixed.
Message-ID:  <20030403072409.GA1429@kevad.internal>
In-Reply-To: <20030402193352.T64602-100000@mail.chesapeake.net>
References:  <20030402212503.N26453@gamplex.bde.org> <20030402193352.T64602-100000@mail.chesapeake.net>

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On Wed, Apr 02, 2003 at 07:35:59PM -0500, Jeff Roberson
<jroberson@chesapeake.net> wrote:

> Do you know of any problem other than idlepri breakage?  I just fixed
> that.  I'm about to get on a plane so I don't have time to benchmark it.
> If you have a chance I'd love to see how the most recent fixes effect your
> buildworld time.
> 
> I still have to microoptimize the code a bit to get rid of switch
> statements etc, but it all works.

Interactivity is still worse under ULE. It's quite noticeable and I
tested it on two SMP boxes by running two simple loops in kind of:
for ((;;)); do let $((4+4)); done # this is bash specific

The loops ran under nice +20. Typing in the xterm is jerky,
characters will not show up immediately, but in small "bursts". I
mean that about three characters typed in will show up immediately,
then small pause happens and a burst of characters (which queued up
in the pause) will show up. This is annoying. Starting up xterm
takes more time as well, but I can live with that.
-- 

Vallo Kallaste



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