Excerpts from Robin Gareus's message of 2011-07-20 23:08:50 +0200:
For all here who don't follow the kernel lists..
Thomas Gleixner has announced a new version of the real-time patch:
https://lkml.org/lkml/2011/7/19/309
Even though most of the pro-audio-relevant preemt-rt patches are already
mainline since 2.6.39, this is still very interesting mostly because:
What's new in 3.0-rt ?
- No more split soft interrupt threads. We need to analyze whether
this is a good decision.
- softirq handling from the end of interrupt threads and on all
thread sites where a nested local_bh disabled section ends
...
..and this latency plot is stunning:
https://www.osadl.org/Latency-plot-of-system-in-rack-4-slot.qa-latencyplot-…
enjoy,
robin
Thanks,
seems like significant changes were made in the smp department, let's
hope they work out.
The plot really does look stunning, strangly (?) not on other machines.
https://www.osadl.org/Latency-plot-of-system-in-rack-4-slot.qa-latencyplot-…
https://www.osadl.org/Latency-plot-of-system-in-rack-4-slot.qa-latencyplot-…
No idea what those plots tell about real world usage. It's good to get
another set of patches though.
Philipp