Test Day:2009-10-22 Power Management

DATE	WHEN	WHERE
2009-10-22	From 12:00 to 21:00 UTC (8am -> 5pm EDT)	#fedora-test-day (webirc)

What to test

We'd like to check power management tuning available for Fedora-12.

If you come to this page after the test day is completed, your testing is still valuable. You can check whether you save some energy after applying tuning.

Who's available

The following cast of characters will be available testing, workarounds, bug fixes, general discussion ...

• Development - Phil Knirsch, Marcela Maslanova (marcela on irc), Petr Lautrbach, Jiri Skala (skalnik on irc)
• Quality Assurance - Jan Scotka

Prerequisite

Disk space
Please make sure you have enough space on your disk. You will need kernel-debuginfo package whis is about 250MB large!

Live systems
We prefer testing on installed system. It is almost impossible to test on LiveCD because of required disk space. If you decide to test on LiveUSB, please, add a note into results table about this (into HW column).

1. An installed Rawhide (development version of Fedora) with graphical environment. Alternatively, you may install Fedora 12 Beta and update your system.
2. SELinux isn't needed, users don't have to enable it.
3. Internet connection
4. The special-purpose Test Day RPM package which includes necessary dependencies and provides all testing scripts.
   1. Download the package for your architecture: (i686, x86_64, ppc, ppc64)
   2. Download the package public key and import into RPM: su -c "rpm --import testday-20091022.asc"
   3. Lastly, install the package using: yum --enablerepo=rawhide-debuginfo localinstall testday-pm-0.6-1.fc12.YOURARCH.rpm
5. Kernel debugging info:
   • Install the required package: debuginfo-install kernel
   • Alternatively, you can install the debuginfo kernel using yum: yum --enablerepo=rawhide-debuginfo install kernel-debuginfo
   • NOTE - be sure that the kernel-debuginfo version matches your kernel version. You can confirm by running the command rpm -q kernel-debuginfo-$(uname -r)
6. Upload your hardware to Smolt according to these instructions.

Running the tests

Update your machine

It will be needed rawhide machine. Howto install or update Rawhide.

Tests

The test cases are split into test groups. Some of the tests are a bit time-consuming. Please perform as many tests as possible. If you aren't able to run them all, please remember that the tests in each table are sorted by importance in descending order.

You don't have to download any special scripts for each test. Our Testday package provides following commands:

• testday-run-testname (performing tests)
• testday-pack-results (packing results of all tests in .tag.gz file)

There is a note about permission in the description of each test. Please follow this information.

X Window System

These tests should be performed on all systems in X11 environment.

Testcase	Description	ETA
personal	Typical use of computer (do whatever you are doing usually). CPU states and frequencies.	10 minutes
scomes	Ticks, syscall count, read/written bytes when performing some specific tasks.	1 minute

Single mode

These tests should be performed in single mode.

Refraining reboots
We recommend reading the description of both tests and performing these in sequence - to refrain more reboots.

Testcase	Description	ETA
tuned	CPU states and frequencies when tuning daemon enabled	7 minutes
basic	Stress situations (BZIP2 compression, disk copying, vsftpd test)	2 minutes

Laptops

Following tests are intended only for laptops. If you don't have a laptop, don't perform these tests because they are based on capacity of a battery.

Battery
Please charge your battery before performing any test.

Testcase	Description	ETA
bltk	Power consumption during three simulated workloads (idle, OpenOffice, reader).	15 minutes
tunedprofiles	Tuned profiles effect on power consumption.	5-20 minutes
alpm	A simple test to determine effect of SATA link power management settings on power consumption.	10 minutes

Results

• Send your Smolt profile if you haven't done it already (see Prerequsite).
• Create compressed file with results by running: testday-pack-results
• Upload created file to this wiki.
• Add your results into the table below.

File uploading
The testday-pack-results will create file /tmp/testday-091022-your-public-smolt-profile-uuid.tar.gz. This name should be unique. But pay attention when uploading it - do not overwrite somebody else's file!

User	Smolt Profile	Results file	ALPM result	Comments & problems
User:ExampleUser	HW profile	results
guaneryu	HW profile	results
guaneryu	Laptop HW profile	results	No SATA device
User:czhang	HW profile	results
User:hdong	HW profile	results
User:hdong	HW profile	results	No such files - /sys/class/scsi_host/host*/link_power_management_policy
User:jbao	HW profile	results
User:jbao	HW profile	results	No SATA device
User:Liam	HW profile	results
Jan Vcelak	HW profile	results		desktop
	HW profile	results	max: 17.6W med: 17.5W min: 17.4W	laptop
User:ykopkova	HW profile	results
User:jscotka	HW profile	results	max: 37.2W, medium: 36.3W, min: 36.6W	It seems that changing powerstates was more less without effects
jkoten	HW profile	results	max: 16.1W, medium: 16.0W, min: 15.6W
mmaslano	HW profile	results	No such files - /sys/class/scsi_host/host*/link_power_management_policy
alich	HW profile	results
User:tpelka	HW profile	results
urban	HW profile	results
User:rrakus	HW profile	results	No SATA on machine	Well, stap and battery things doesn't work on ppc (iBook G4)
Michal Nowak	HW profile	results
Phil Knirsch	HW profile	results
James Laska	HW profile	results	No such files - /sys/class/scsi_host/host*/link_power_management_policy
Geert Janssens	HW profile	results	No such files - /sys/class/scsi_host/host*/link_power_management_policy
Mike Gahagan	HW profile	results	min_pwr:21.2 max_perf: 21.9 med_pwr: 21.2	noticed some inconsistancy in pwr readings, with 1019 USB image, usage is about 2.5W less.. HD likely spun down
Vincent Danen	HW profile	results
Luya Tshimbalanga	HW profile	results
User:rblok	HW profile	results
David Tardon	HW profile	results
Evan McNabb	HW profile	results	max_perf: 16.4 med_pwr: 16.3 min_pwr: 15.9
Luya Tshimbalanga	HW profile	results	No such files - /sys/class/scsi_host/host*/link_power_management_policy	LG Xnote LT-20 laptop
User:BobLfoot	HW profile	results	ALPM would not execute as instructed	Dell Dimension B120 laptop One Crash of Python during test bug filed
Petr Lautrbach	HW profile	results