13 Jul
2005
13 Jul
'05
4:20 p.m.
On Wed, 2005-07-13 at 13:52 -0400, Lee Revell wrote:
On Wed, 2005-07-13 at 13:42 -0400, Eric Dantan
Rzewnicki wrote:
Any chance they would make it a config option?
It is a config option, the available settings are 100, 250, and 1000.
The problem is that the default has changed to 250.
Update: Linus has said that this is a done deal. So now we need to
figure out how to work around it. I guess we'll have to go back to
using the RTC like on 2.4.
Lee
What is driving the kernel-devs to regress on this
issue?
Saving battery on laptops. The only performance numbers anyone posted
indicated HZ=250 sped up a kernel compile on a 16 CPU machine (!) by
~5%, and this was after the fact. Not exactly compelling...
But since Linus and Andrew apparently all use laptops, us desktop people
are screwed...