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Re: [Xen-devel] [PATCH v2 0/4] xen/rcu: let rcu work better with core scheduling

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.


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