lkml.org 
[lkml]   [2004]   [Nov]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm3-V0.7.21
Ingo Molnar wrote:

>i have released the -V0.7.21 Real-Time Preemption patch, which can be
>downloaded from the usual place:
>
> http://redhat.com/~mingo/realtime-preempt/
>
>this release includes fixes and debugging-improvements.
>
>Changes since -V0.7.20:
>
> - reverted the modlist_lock change - it caused more problems than it
> solved.
>
> - implemented irqs-off critical section timing/tracing, inspired by the
> positive results Thomas Gleixner got with a different kind of cli/sti
> tracer. To activate it, enable CONFIG_CRITICAL_TIMING and
> CONFIG_CRITICAL_IRQSOFF_TIMING and cli/sti latencies will be reported
> 'integrated' into the preempt on/off latencies.
>
> - sped up tracing in a number of ways. Performance of the tracer slowly
> eroded in the past week or two, it needed alignment and size fixes ,
> inlining/branch-prediction updates and i got rid of unnecessary code.
> The max latency is now traced in cycles - this got rid of an
> expensive 64-bit division in the fastpath. (the /proc/sys tunables
> are still in usecs so userspace should not notice anything.) It's
> still not cheap but roughly 5 times faster than -V0.7.20's tracer, on
> a fast desktop box.
>
> - renamed CONFIG_PREEMPT_REALTIME to CONFIG_PREEMPT_RT - it's shorter.
>
> - renamed CONFIG_PREEMPT_TIMING to CONFIG_CRITICAL_TIMING and
> introduced CONFIG_CRITICAL_IRQSOFF_TIMING to enable cli/sti timing.
>
>to create a -V0.7.21 tree from scratch, the patching order is:
>
> http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.9.tar.bz2
> http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.10-rc1.bz2
> http://kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.10-rc1/2.6.10-rc1-mm3/2.6.10-rc1-mm3.bz2
> http://redhat.com/~mingo/realtime-preempt/realtime-preempt-2.6.10-rc1-mm3-V0.7.21
>
> Ingo
>
>
>
When trying to patch my kernel i get following notice:
patching file include/linux/highmem.h
patch unexpectedly ends in middle of line
patch: **** unexpected end of file in patch
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:07    [W:1.040 / U:3.728 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site