Messages in this thread | | | Date | Mon, 7 Nov 2016 18:30:30 +0100 | From | Sebastian Andrzej Siewior <> | Subject | Re: [PATCH] rcu: update: make RCU_EXPEDITE_BOOT default |
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On 2016-11-07 12:19:39 [-0500], Steven Rostedt wrote: > I agree, but if this creates a boot time regression in large machines, > it may not be warranted. > > I know Linus usually doesn't like options with default y, but this may > be one of those exceptions. Perhaps we should make it on by default and > say in the config "if you have a machine with 100s or 1000s of CPUs, > you may want to disable this".
The default could change if we know where the limit is. I have access to a box with approx 140 CPUs so I could check there if it is already bad. But everything above that / in the 1000 range is a different story.
> -- Steve
Sebastian
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