On 18/02/2020 12:21, Juergen Gross wrote:
> Today the RCU handling in Xen is affecting scheduling in several ways.
> It is raising sched softirqs without any real need and it requires
> tasklets for rcu_barrier(), which interacts badly with core scheduling.
> 
> This small series repairs those issues.
> 
> Additionally some ASSERT()s are added for verification of sane rcu
> handling. In order to avoid those triggering right away the obvious
> violations are fixed.
> 

Initial test of the first 2 patches is promising. Will run more tests
over night to see how stable it is.

Igor

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