Re: [patch] Real-Time Preemption, -RT-2.6.13-rc4-V0.7.53-01, High Resolution Timers & RCU-tasklist features

[Lee Revell <rlrevell@joe-job.com>]

On Thu, 2005-08-11 at 13:00 +0200, Ingo Molnar wrote:
> i have released the -53-01 Real-Time Preemption patch, which can be 
> downloaded from:
> 
>   http://redhat.com/~mingo/realtime-preempt/
> 
> there are two new features in this release, which justified the jump 
> from .52 to .53:
> 
>  - the inclusion of the High Resolution Timers patch, written by
>    George Anzinger, and ported/improved/cleaned-up by Thomas Gleixner.
> 

George,

Very nice to see this going in (via) the RT patch.

Can we get a real help text here:

Clock & Timer Selection
> 1. Legacy Timer Support (LEGACY_TIMER) (NEW)
  2. HPET Timer Support (HPET_TIMER)
  3. High Resolution Timer Support (HIGH_RES_TIMERS) (NEW)
choice[1-3?]: ?

You may have either HPET, High Resolution, or Legacy timer support.

This would be a great place to put some of your extensive docs about the
various timer sources and issues on x86.  I have always thought the HRT
docs were the best source on the net for this info, and I refer people
to it whenever someone has a question about timers on the linux audio
lists.

The docs for "High Resolution Timer clock source" are great.

Can we get more docs here:

HRT Softirg dynamic priority adjustment (HIGH_RES_TIMERS_DYN_PRIO) 
        ^^^ typo
[N/y/?] (NEW) ?

This option enables the dynamic priority adjustment of the
high resolution timer soft interrupt

No point documenting this one if it's expected to go away though.

Lee


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