login
Header Space

 
 

Re: [2.6.25-stable PATCH] regression: powertop says 120K wakeups/sec

Score:
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
To: Pallipadi, Venkatesh <venkatesh.pallipadi@...>
Cc: Len Brown <lenb@...>, Linux Kernel Mailing List <linux-kernel@...>
Date: Monday, April 28, 2008 - 2:01 pm

Pallipadi, Venkatesh wrote:
No, C1/C2 did not seem to work with 2.6.24 - at least powertop reported 99,=
9%=20
C0 usage. It was the same behavior as after applying the wakeup patch.=20
However in 2.6.25 and 2.6.25-git11 C1/C2 worked correctly and C2 showed up =
in=20
pt. But after applying your patch to 2.6.25-git11 they did not:

git11:
PowerTOP version 1.9       (C) 2007 Intel Corporation
Cn                Avg residency       P-states (frequencies)
C0 (cpu running)        ( 9,4%)         1,80 Ghz   100,0%
C1                0,0ms ( 0,0%)         1,60 Ghz     0,0%
C2                0,4ms (90,6%)          800 Mhz     0,0%
Wakeups-from-idle per second : 9051,0   interval: 5,0s

git11 with wakeup-patch:
PowerTOP version 1.9       (C) 2007 Intel Corporation
Cn                Avg residency       P-states (frequencies)
C0 (cpu running)        (99,9%)         1,80 Ghz   100,0%
C1                0,0ms ( 0,0%)         1,60 Ghz     0,0%
C2                0,2ms ( 0,1%)          800 Mhz     0,0%
Wakeups-from-idle per second : 59,8     interval: 10,0s

In both cases the system was idle. I've uploaded the files you wanted:
http://www-user.tu-chemnitz.de/~klada/misc/kernel/cpuidle_git11.txt
http://www-user.tu-chemnitz.de/~klada/misc/kernel/cpuidle_git11_wakeuppatch=
=2Etxt
http://www-user.tu-chemnitz.de/~klada/misc/kernel/dmesg_git11.txt
http://www-user.tu-chemnitz.de/~klada/misc/kernel/dmesg_git11_wakeuppatch.t=
xt
http://www-user.tu-chemnitz.de/~klada/misc/kernel/nx6125_acpidump.out

If there is anything else I can do for debugging this issue please let me=20
know.

=2D Daniel
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]

Messages in current thread:
Re: [2.6.25-stable PATCH] regression: powertop says 120K wak..., Daniel Klaffenbach, (Mon Apr 28, 6:09 am)
RE: [2.6.25-stable PATCH] regression: powertop says 120K wak..., Pallipadi, Venkatesh, (Mon Apr 28, 12:36 pm)
Re: [2.6.25-stable PATCH] regression: powertop says 120K wak..., Daniel Klaffenbach, (Mon Apr 28, 2:01 pm)
RE: [2.6.25-stable PATCH] regression: powertop says 120K wak..., Pallipadi, Venkatesh, (Mon Apr 28, 5:13 pm)
Re: [2.6.25-stable PATCH] regression: powertop says 120K wak..., Daniel Klaffenbach, (Tue Apr 29, 5:14 am)
speck-geostationary