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Date:      Fri, 11 Apr 2008 13:12:31 +0100
From:      Pete French <petefrench@ticketswitch.com>
To:        freebsd-stable@freebsd.org, unga888@yahoo.com
Subject:   Re: sched_ule performance on single CPU
Message-ID:  <E1JkI7L-000GIu-QH@dilbert.ticketswitch.com>
In-Reply-To: <722730.35047.qm@web57013.mail.re3.yahoo.com>

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> What I refer is, when quickly open multiple tabs (7 or
> 8) in firefox and click on the fist tab to type user
> id while other tabs still downloading, its seems there
> is a minor yet noticeable delay that I did not
> experience with sched_4bsd.

Ah, O.K. - havent noticed that, and it wouldnt bother me
really. What I found is that if you are doing a 'make buildworld'
in a window then you can't really use firefox properly
at all using 4BSD, but you can with ULE. For that I am
happy to put up with minor delays - overally it's a lot
more usable.

> To me, its seems there is no noticeable gain with
> sched_ule, but rather the desktop is bit slow to
> respond.

Try the compiling experiment and see if you get the same effect
as I did. For me it;s a bit win, because I couldnt use the
desktop when I was compiling code. Swingd and roundabouts
though - if you dont od big comiles then it may seem theres no
benifit for you.

-pete.



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