Re: [linux-pm] [PATCH] cpuidle: avoid singing capacitors

On Tue, Mar 04, 2008 at 12:10:33AM +0100, Andi Kleen wrote:
On Mon, Mar 03, 2008 at 06:05:35PM -0500, Alan Stern wrote:
On Mon, 3 Mar 2008, Pallipadi, Venkatesh wrote:

But, with this patch:
- we are penalizing good hardware and making them less power efficient
to match the bad ones.
- There may also be server systems which first may not have these sort
of power fluctuations and even when buggy and have this noise, system
may be in some corner of some lab with fans making more noise than the
capacitors.

Can you make it configurable through sysfs?

It already is, through a writable module_parm()

Default to disabled, but
allow the user to turn it on if the machine makes too much noise.

99+% of the users wouldn't be able to figure that out.

99+% of users don't have singing capacitors. (Or don't care enough to complain)
For those that do can't figure out what to do from google,
we have a documentation problem.

Dave

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Relevant Pages

  • Re: [linux-pm] [PATCH] cpuidle: avoid singing capacitors
    ... - we are penalizing good hardware and making them less power efficient ... There may also be server systems which first may not have these sort ... may be in some corner of some lab with fans making more noise than the ...
    (Linux-Kernel)
  • Re: [linux-pm] [PATCH] cpuidle: avoid singing capacitors
    ... - we are penalizing good hardware and making them less power efficient ... There may also be server systems which first may not have these sort ... may be in some corner of some lab with fans making more noise than the ...
    (Linux-Kernel)