Re: nice policy in Linux

Kai Henningsen (kaih@khms.westfalen.de)
05 Apr 1999 17:41:00 +0200


hyatt@cis.uab.edu (Robert M. Hyatt) wrote on 30.03.99 in <Pine.LNX.3.96.990330212421.9970A-100000@crafty>:

> have you ever spent time 'tweaking' a program to make it run faster?

Very often.

> If so, you'd know why "I" want this. Because some changes are going
> after a 1-2% improvement.

Practically never.

Changes like that aren't worth the work you put in, *unless* those are the
1-2% your program takes too long to meet some sort of deadline. *And* you
have already given up on larger improvements.

In which case you need a real-time job, and Un*x nice values are
completely irrelevant to your problem.

> As I said, you have to see the need to see the need. But not seeing
> it doesn't mean it isn't there for others...

OTOH, "seeing" it doesn't mean it's real.

Oh, BTW, I certainly agree that a more dramatic difference between nice
levels would be good.

MfG Kai

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