Messages in this thread | | | Date | Sat, 2 Dec 2023 18:45:07 -0500 | From | Steven Rostedt <> | Subject | Re: [RCU] rcu_tasks_trace_qs(): trc_reader_special.b.need_qs value incorrect likely()? |
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On Sat, 2 Dec 2023 14:24:26 -0800 "Paul E. McKenney" <paulmck@kernel.org> wrote:
> > Note, the unlikely tracing is running on my production server v6.6.3. > > > > The above trace is from my test box with latest Linus's tree. > > Nice tool!!!
Thanks! It's only been in the kernel since 2008 ;-)
1f0d69a9fc815 ("tracing: profile likely and unlikely annotations")
> > My kneejerk reaction is that that condition is suboptimal. Does the > (untested) patch below help things?
I'll give it a try on Monday.
Thanks,
-- Steve
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