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* 2.6.19-rc6-rt5
@ 2006-11-20 22:02 Ingo Molnar
  2006-11-20 22:39 ` 2.6.19-rc6-rt5 Alistair John Strachan
                   ` (6 more replies)
  0 siblings, 7 replies; 22+ messages in thread
From: Ingo Molnar @ 2006-11-20 22:02 UTC (permalink / raw)
  To: linux-kernel

i've released the 2.6.19-rc6-rt5 tree, which can be downloaded from the 
usual place:

  http://redhat.com/~mingo/realtime-preempt/

the -rt YUM repository for Fedora Core 6 can be activated via:

   cd /etc/yum.repos.d
   wget http://people.redhat.com/~mingo/realtime-preempt/rt.repo
   yum install kernel-rt

on x86_64, do:

   yum install kernel-rt.x86_64

lots of fixes and improvements were done to -rt5. In particular 
SMP/dual-core systems should get quite a bit faster. Changes:

 - implemented proper per-cpu page allocation (PCP-list) in 
   page_alloc.c, for PREEMPT_RT too. (previously this code was #ifdef-ed 
   out and we allocated straight from the zones - but this caused the 
   zone lock to act as a global lock)

 - speedup of PREEMPT_RT's implementation of atomic_dec_and_lock().
   (this was a major bottleneck for workloads like kernel compiles.)

 - more tracer features: symbolic stack backtraces embedded in 
   /proc/latency_trace for certain types of events, switchable syscall 
   tracing.

 - irq-threading cleanups, based on the comments from Sergei Shtylyov, 
   Daniel Walker and Benjamin Herrenschmidt.

 - vsyscall & tracing fixes: 'notsc' should not be required on the YUM 
   rpms anymore.

to build a 2.6.19-rc6-rt5 tree, the following patches should be applied:

  http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.18.tar.bz2
  http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.19-rc6.bz2
  http://redhat.com/~mingo/realtime-preempt/patch-2.6.19-rc6-rt5

as usual, bugreports, fixes and suggestions are welcome,

	Ingo

^ permalink raw reply	[flat|nested] 22+ messages in thread

end of thread, other threads:[~2006-11-29  6:57 UTC | newest]

Thread overview: 22+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2006-11-20 22:02 2.6.19-rc6-rt5 Ingo Molnar
2006-11-20 22:39 ` 2.6.19-rc6-rt5 Alistair John Strachan
2006-11-21  7:17   ` 2.6.19-rc6-rt5 Ingo Molnar
2006-11-20 23:18 ` 2.6.19-rc6-rt5 Alistair John Strachan
2006-11-21  7:20   ` 2.6.19-rc6-rt5 Ingo Molnar
2006-11-21  1:35 ` 2.6.19-rc6-rt5 Sergio Monteiro Basto
2006-11-21  8:04   ` 2.6.19-rc6-rt5 Ingo Molnar
2006-11-21  3:07 ` compile problems 2.6.19-rc6-rt5 Sergio Monteiro Basto
2006-11-21  7:43   ` Ingo Molnar
2006-11-21  7:54   ` Ingo Molnar
2006-11-22 11:37 ` 2.6.19-rc6-rt5 Robert Schwebel
2006-11-23 20:43   ` 2.6.19-rc6-rt5 Eduardo Valentin
2006-11-23 21:11     ` 2.6.19-rc6-rt5 Robert Schwebel
2006-11-22 14:06 ` 2.6.19-rc6-rt5 Mark Knecht
2006-11-28 17:33   ` 2.6.19-rc6-rt5 Lee Revell
2006-11-28 19:53     ` 2.6.19-rc6-rt5 Mark Knecht
2006-11-28 20:16       ` 2.6.19-rc6-rt5 Lee Revell
2006-11-28 20:15     ` 2.6.19-rc6-rt5 Ingo Molnar
2006-11-28 22:52       ` 2.6.19-rc6-rt5 Mark Knecht
2006-11-29  6:54         ` 2.6.19-rc6-rt5 Ingo Molnar
2006-11-26 14:39 ` 2.6.19-rc6-rt5 Karsten Wiese
2006-11-27  7:48   ` 2.6.19-rc6-rt5 Ingo Molnar

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