From: Guenter Roeck <linux@roeck-us.net>
To: Alexander Stein <alexander.stein@systec-electronic.com>,
linux-watchdog@vger.kernel.org
Subject: Re: watchdog timeout in sub-seconds?
Date: Mon, 13 Apr 2015 06:53:02 -0700 [thread overview]
Message-ID: <552BCA3E.5010305@roeck-us.net> (raw)
In-Reply-To: <3042537.C3OUI66IzY@ws-stein>
On 04/13/2015 06:33 AM, Alexander Stein wrote:
> Hi,
>
> is there a specific reason that the timeout in the linux watchdog drivers is
> only provided in seconds resolution? What about timeouts in ms area/precision?
>
The question would probably be why not. On a loaded system, sub-second
watchdog timeouts are quite unreasonable.
In other words, you would have to provide a very good argument for
sub-second timeouts if you see the need for it. That some hardware
may require it is not really an argument here - this is all about
user space - kernel interface, not about limitations of specific
hardware.
Guenter
next prev parent reply other threads:[~2015-04-13 13:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-13 13:33 watchdog timeout in sub-seconds? Alexander Stein
2015-04-13 13:53 ` Guenter Roeck [this message]
2015-04-14 8:15 ` Alexander Stein
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