On Fri, Sep 11, 2026 at 02:24:44PM +0200, Jirka Hladky wrote: > Hi Mukesh, > > I built 7.2-rc4 from source with your proposed rcu_ct_kernel_exit_qs() > patch and re-ran the same sweep - it shows minor improvements vs. stock > 7.2-rc4 > > Full results, median bogo-ops/sec over 15 runs each: > > Mode 7.1 7.2-rc4 7.2-rc4+patch > Enforcing 68,275 70,154 71,585 > Permissive 68,082 67,166 68,705 > Disabled 99,654 100,510 101,016 > > The patch vs. stock 7.2-rc4 differences (+4.8%/+0.9%/+1.3%) are hard > to distinquish > from run-to-run noise we've been seeing on this hardware, but they are > consistent. > > I think it's a useful efficiency improvement on its own merits, as it > does avoid the unconditional rcu_preempt_deferred_qs() call on the common > fast path. Even with only small performance gains, the change looks correct > and low-risk to me, and I'd like to see it land in mainline. Let me > know if there's > anything else you'd like me to test before you post it, or if it's > already queued up > separately from this thread. > > Thank you! > Jirka > Hey Jirka,
Thanks for the verification. I think that's all i wanted. I would send out a patch for this soon. Thanks for all the support. Regards, Mukesh [...]
