On Tue, 2014-10-21 at 17:52 +0200, Guido Aulisi wrote: > Threadirq works with vanilla kernels. > In the kernel docs: > > threadirqs [KNL] > Force threading of all interrupt handlers except those > marked explicitly IRQF_NO_THREAD. But does it cause a noticeable improvement? Since you're using it the answer likely is, that it does ;). I'll test it :). > It's not an RT kernel Yes, but there are different increments of preemption available, depending on the settings when you compile a vanilla kernel ...or I'm mistaken? Are those settings only available for rt patched kernels? [rocketmouse@archlinux ~]$ uname -r 3.16.4-1-ARCH [rocketmouse@archlinux ~]$ zgrep PREE /proc/config.gz CONFIG_TREE_PREEMPT_RCU=y CONFIG_PREEMPT_RCU=y CONFIG_PREEMPT_NOTIFIERS=y # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set CONFIG_PREEMPT=y CONFIG_PREEMPT_COUNT=y # CONFIG_DEBUG_PREEMPT is not set # CONFIG_PREEMPT_TRACER is not set [rocketmouse@archlinux ~]$ grep PREE /usr/src/linux-3.10.47-rt50-1-rt-lts/.config CONFIG_TREE_PREEMPT_RCU=y CONFIG_PREEMPT_RCU=y CONFIG_PREEMPT_NOTIFIERS=y CONFIG_PREEMPT=y CONFIG_PREEMPT_RT_BASE=y CONFIG_HAVE_PREEMPT_LAZY=y CONFIG_PREEMPT_LAZY=y # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT__LL is not set # CONFIG_PREEMPT_RTB is not set CONFIG_PREEMPT_RT_FULL=y CONFIG_PREEMPT_COUNT=y # CONFIG_DEBUG_PREEMPT is not set # CONFIG_PREEMPT_TRACER is not set Ok, full preempt seems to need the rt patch. Hm? http://stackoverflow.com/questions/21997122/linux-kernel-preemption-levels _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
