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Date:      Thu, 01 Feb 2001 20:32:25 +0200
From:      Sheldon Hearn <sheldonh@uunet.co.za>
To:        Cejka Rudolf <cejkar@dcse.fee.vutbr.cz>
Cc:        freebsd-current@freebsd.org
Subject:   Re: Does task scheduler work correctly? (... nice bug fix) 
Message-ID:  <39485.981052345@axl.fw.uunet.co.za>
In-Reply-To: Your message of "Thu, 01 Feb 2001 19:23:04 %2B0100." <20010201192304.A54677@dcse.fee.vutbr.cz> 

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On Thu, 01 Feb 2001 19:23:04 +0100, Cejka Rudolf wrote:

> After reading commit logs, I understand that:
> 
> * Scheduling in -current should not cause locks, but nice is again broken.
> * Scheduling in -stable can cause locks (?!?), but nice works perfectly.
> 
> I could not believe that my understandings are correct. Please, could
> anybody explain to me the real scheduler status?

What I remember of the discussions that surrounded this one, your
summary is correct.  The only thing is that nice isn't so much _broken_
as it just isn't doing what you'd expect it to. :-)

I don't think any of the FreeBSD manual pages suggest that nice 20
processes aren't supposed to get _any_ CPU time.

Ciao,
Sheldon.


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