On Wed, 2017-06-28 at 08:39 -0500, Andrei Hurynovich wrote: > Hi. > > We are trying to build realtime(-ish) system based on rhel6(kernel > 2.6.32-642.1.1.el6.x86_64). > > We used isolcpus to remove some cpus from process > scheduling(isolcpus=2-19 nohz_full=2-19 rcu_nocbs=2-19). > > We spin off a program thread that set's its cpu affinity to one of > those > isolated cpus, sets its scheduling chass to SCHED_FIFO, spins in a > loop > and never sched_yield()-s to the kernel. > > We set sysctl kernel.sched_rt_runtime_us = -1 so realtime threads > are > NEVER interrupted.
You want an actual realtime kernel for that to work right. The real time kernel currently supported by Red Hat is 3.10 based, not 2.6.32 based. -- All rights reversed
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