linux-kernel - Re: [RFC PATCH RT] x86/tsc: Add option to disable tsc clocksource watchdog

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Message-ID: <20190314070951.GC31405@localhost.localdomain>
Date:   Thu, 14 Mar 2019 08:09:51 +0100
From:   Juri Lelli <juri.lelli@...hat.com>
To:     tglx@...utronix.de, bigeasy@...utronix.de
Cc:     linux-rt-users@...r.kernel.org, peterz@...radead.org,
        linux-kernel@...r.kernel.org, bristot@...hat.com,
        williams@...hat.com
Subject: Re: [RFC PATCH RT] x86/tsc: Add option to disable tsc clocksource
 watchdog

Hi,

On 07/03/19 13:09, Juri Lelli wrote:
> Clocksource watchdog has been found responsible for generating latency
> spikes (in the 10-20 us range) when woken up to check for TSC stability.
> 
> Add an option to disable it at boot.

Gentle ping.

Does this make any sense?

Thanks,

- Juri