Re: [RFC PATCH] livepatch: Speed up transition retries
From: Vasily Gorbik
Date: Thu Jul 08 2021 - 09:19:42 EST
On Thu, Jul 08, 2021 at 12:35:24PM +0200, Petr Mladek wrote:
> On Wed 2021-07-07 14:49:41, Vasily Gorbik wrote:
> > That's just a racy hack for now for demonstration purposes.
> > For s390 LPAR with 128 cpu this reduces livepatch kselftest run time
> > from
> > real 1m11.837s
> > user 0m0.603s
> > sys 0m10.940s
> > to
> > real 0m14.550s
> > user 0m0.420s
> > sys 0m5.779s
> > Would smth like that be useful for production use cases?
> > Any ideas how to approach that more gracefully?
> Honestly, I do not see a real life use case for this, except maybe
> speeding up a test suite.
> The livepatch transition is more about reliability than about speed.
> In the real life, a livepatch will be applied only once in a while.
That's what I thought. Thanks for looking. Dropping this one.