Gentoo Archives: gentoo-amd64

From: Sergio Polini <sp_rm_it@×××××.it>
To: gentoo-amd64@l.g.o
Subject: Re: [gentoo-amd64] [gentoo-amd64 Gentoo Linux Tuning Guide
Date: Thu, 27 Apr 2006 15:49:37
Message-Id: 200604271747.53468.sp_rm_it@yahoo.it
In Reply to: Re: [gentoo-amd64] [gentoo-amd64 Gentoo Linux Tuning Guide by Fernando Boaglio
1 Fernando Boaglio:
2 > It's not about startup time, it's about running time, sometimes the
3 > systems freezes
4 > a little bit, just like asking for more CPU or RAM.
5
6 I'ld look at the cpu frequency governor.
7 >From /usr/src/linux/drivers/cpufreq/Kconfig, about the 'conservative'
8 governor:
9
10 "If you have a desktop machine then you should really be considering
11 the 'ondemand' governor instead, however if you are using a laptop,
12 PDA or even an AMD64 based computer (due to the unacceptable
13 step-by-step latency issues between the minimum and maximum frequency
14 transitions in the CPU) you will probably want to use this governor."
15
16 As far as I can understand, this means that AMD64 takes "a lot" of
17 time to switch between two frequencies, so "the system freezes a
18 little bit" when this happens.
19
20 This is why I've choosen the conservative governor for my HP dv5000
21 laptop.
22
23 My 2 cents ;-)
24
25 Sergio
26
27 --
28 gentoo-amd64@g.o mailing list

Replies

Subject Author
Re: [gentoo-amd64] [gentoo-amd64 Gentoo Linux Tuning Guide Paolo Ripamonti <paolo.ripamonti@×××××.com>
Re: [gentoo-amd64] [gentoo-amd64 Gentoo Linux Tuning Guide Fernando Boaglio <boaglio@×××××.com>