linux-kernel - Re: [RFC][PATCH 0/7] sched,rcu,context_tracking,livepatch: Improve livepatch task transitions for idle and NOHZ

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Date:   Thu, 23 Sep 2021 15:22:43 +0200
From:   Petr Mladek <pmladek@...e.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     gor@...ux.ibm.com, jpoimboe@...hat.com, jikos@...nel.org,
        mbenes@...e.cz, mingo@...nel.org, linux-kernel@...r.kernel.org,
        joe.lawrence@...hat.com, fweisbec@...il.com, tglx@...utronix.de,
        hca@...ux.ibm.com, svens@...ux.ibm.com, sumanthk@...ux.ibm.com,
        live-patching@...r.kernel.org, paulmck@...nel.org
Subject: Re: [RFC][PATCH 0/7] sched,rcu,context_tracking,livepatch: Improve
 livepatch task transitions for idle and NOHZ_FULL cpus

On Wed 2021-09-22 13:05:06, Peter Zijlstra wrote:
> Hi,
> 
> Compile tested only, please consider carefully, esp. the last few patches that
> concern context_tracking and nohz_full.

BTW: The patchset seems to significantly speed up livepatch selftests
     in tools/testing/selftests/livepatch. I haven't measured it.
     But I do not longer have to switch screen and do anything else.

     The transition speed is not our priority. But it is another nice
     win of this patchset. I only hope that we did not introduce
     any race ;-)

Best Regards,
Petr