Re: [PATCH] Updated: Dynamic Tick version 050408-1

From: Frank Sorenson
Date: Fri Apr 08 2005 - 03:52:03 EST


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Tony Lindgren wrote:
| * Tony Lindgren <tony@xxxxxxxxxxx> [050407 23:28]:
|
|>I think I have an idea on what's going on; Your system does not wake to
|>APIC interrupt, and the system timer updates time only on other
interrupts.
|>I'm experiencing the same on a loaner ThinkPad T30.
|>
|>I'll try to do another patch today. Meanwhile it now should work
|>without lapic in cmdline.
|
|
| Following is an updated patch. Anybody having trouble, please try
| disabling CONFIG_DYN_TICK_USE_APIC Kconfig option.
|
| I'm hoping this might work on Pavel's machine too?
|
| Tony

This updated patch seems to work just fine on my machine with lapic on
the cmdline and CONFIG_DYN_TICK_USE_APIC disabled.

Also, you were correct that removing lapic from the cmdline allowed the
previous version to run at full speed.

Now, how can I tell if the patch is doing its thing? What should I be
seeing? :)

Functionally, it looks like it's working. There were a number of
compiler warnings you might wish to fix before calling it good. Such as
"initialization from incompatible pointer type" several times in
dyn-tick-timer.c and a "too many arguments for format" in
dyn_tick_late_init.

Frank
- --
Frank Sorenson - KD7TZK
Systems Manager, Computer Science Department
Brigham Young University
frank@xxxxxxxxxxxx
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