Gentoo Archives: gentoo-user

From: Andreas Karlsson <hermes@××××.se>
To: gentoo-user@l.g.o
Subject: [gentoo-user] AMD X2 timings
Date: Thu, 20 Oct 2005 20:44:17
Message-Id: 200510202236.56336.hermes@home.se
1 Hi,
2
3 After comming to termis with various make.conf issues after upgrading CPU to
4 K8 I now find myself struggeling with another problem, or rather two. First I
5 found this http://bugzilla.kernel.org/show_bug.cgi?id=5105. It seems that a
6 timing issue with TSC timings in the kernel makes the the kernel clock lose
7 sync (or something like that). According to the changelog for 2.6.13-r4
8 ( http://www.gentoo.org/cgi-bin/viewcvs.cgi/*checkout*/sys-kernel/gentoo-sources/ChangeLoghttp://www.gentoo.org/cgi-bin/viewcvs.cgi/*checkout*/sys-kernel/gentoo-sources/ChangeLog)
9 this bug is fixed, but I still have problems with the keyboard repeating
10 keystrokes, like thiiiiiiiiiiiiiiiiiiiiiiiiiiis (just pressing ´i´ once),
11 after upgrading to 2.6.13-r4.
12 A suggested fix is to pass 'notsc' to the kernel at boottime. I tried this,
13 but can´t disable TSC when compiling the kernel. I tried to change
14 CONFIG_X86_TSC=y to CONFIG_X86_TSC=n, but when starting the make-process, it
15 is changed back to CONFIG_X86_TSC=y automaticly. What am I doing wrong?
16
17 Second I have an overall impression that X is slower than before. It doesn´t
18 feel as "snappy" as it used to with my old AMD Athlon XP 3200+. Theoretilcy
19 it should run faster, right?
20
21 Any inputs on the issues would be most welcome.
22
23 Best regards,
24 Andreas Karlsson
25 Sweden