From mboxrd@z Thu Jan  1 00:00:00 1970
From: michi1@michaelblizek.twilightparadox.com (michi1 at michaelblizek.twilightparadox.com)
Date: Tue, 16 Apr 2013 17:58:01 +0200
Subject: Why the niceness is not always taken into account ?
In-Reply-To: <1740ed2d02fbaad883418ad506ae4ec0@uvsq.fr>
References: <1740ed2d02fbaad883418ad506ae4ec0@uvsq.fr>
Message-ID: <20130416155800.GA2245@grml>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

Hi!

On 10:35 Tue 16 Apr     , Alexandre Laurent wrote:
...
> I am running the same test, but connecting twice on the remote machine
> (one connection by test instance). I am using exactly the same commands
> than during the others experiments. But, by using two SSH instances, 
> the
> niceness will not be taken into account. The CPU will be shared equally
> between both instances even if htop is showing a niceness of 19 / -20
> for the low priority program and the privileged program respectively.

Can you check whether you have CONFIG_SCHED_AUTOGROUP enabled? If it is
enabled, try running the test again with this option turned off.

	-Michi
-- 
programing a layer 3+4 network protocol for mesh networks
see http://michaelblizek.twilightparadox.com