Public bug reported:
The processor speed of my X220 is, according to /proc/cpuinfo, 800MHz.
That's fin when the machine is idling, but if I run a program which
needs more procssor powr, I would xpect that the clock speed is
increased to 2.7GHz. As a naive test, I ran this little Python script:
s = 0
for i in xrange(50000000):
s += i*i
On the X220, this needs -- with an 800MHz clock, 36 seconds.
On another machine, with a 2.4GHz Cor2Duo processor, it needs 14
seconds. When the script is running, the proceso speed increases to 2.4
GHz.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xorg 1:7.6+7ubuntu7
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
Date: Mon Sep 19 22:11:25 2011
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
ProcEnviron:
LANGUAGE=
LANG=de_DE.UTF-8
SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: amd64 apport-bug kubuntu oneiric
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https://bugs.launchpad.net/bugs/854200
Title:
processor sped not increasd for "heavy" load
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