Gentoo Archives: gentoo-user

From: Florian Philipp <lists@××××××××××××××××××.net>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Optimizations for SSD netbook
Date: Sat, 30 May 2009 11:59:12
Message-Id: 4A211F87.5040607@f_philipp.fastmail.net
In Reply to: [gentoo-user] Optimizations for SSD netbook by Grant
1 Grant schrieb:
2 > My girlfriend is at her wit's end with her SSD netbook and is now
3 > hogging my laptop. Her netbook has 1GB RAM that could be upgraded to
4 > 1.5GB, but I've read that it's a pain. It already runs xfce4, and
5 > I've just made these optimizations based on past discussions:
6 >
7 > 1. CFLAGS="-march=prescott -0s -pipe -fomit-frame-pointer -ssse3"
8 > 2. added elevator=noop as a boot parameter
9
10 I remember that I've given this second advice. Since then I've read in
11 the German computer journal c't [1] that CFQ has a detection for SSDs
12 since 2.6.28 and now is the best choice for these devices.
13
14 > 3. disabled DRI to save 32MB RAM
15 > 4. removed the swap partition from /etc/fstab
16 >
17 > Am I missing anything significant? I've read that it's good to set up
18 > /tmp in RAM. How can I do that? In /etc/fstab I have:
19 >
20 > shm /dev/shm tmpfs nodev,nosuid,noexec
21 >
22 > Is that related?
23 >
24
25 Yup, the entry should read:
26 tmp /tmp tmpfs default 0 0
27
28 The first entry is just a name. You can name it in every way you want it.
29
30 For further tweaks: Do you use Firefox? I've read that it uses fsync()
31 when writing to its sqlite backend. This is a really good thing because
32 it reduces the risk of loosing data but you might (and can) disable this
33 to increase performance and reduce wear. I don't have a link at hand but
34 it shouldn't be to hard to find.
35
36 [1]c't 11/2009 page 101

Replies

Subject Author
Re: [gentoo-user] Optimizations for SSD netbook Grant <emailgrant@×××××.com>