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Re: more issues with root fs.

To: linux-mips@fnet.fr
Subject: Re: more issues with root fs.
From: Harald Koerfgen <Harald.Koerfgen@home.ivm.de>
Date: Tue, 26 Jan 1999 22:14:01 +0100 (MET)
In-reply-to: <19990126104803.A4302@mini.gt.owl.de>
Organization: none
Reply-to: "Harald Koerfgen" <Harald.Koerfgen@home.ivm.de>
Sender: harry@franz.no.dom
On 26-Jan-99 Florian Lohoff wrote:
> On Mon, Jan 25, 1999 at 11:17:24PM +0100, Harald Koerfgen wrote:
>> The cause is that the DECstation timer tick is running at 128 Hz and
>> all
>> the userland binaries think that the kernel is running at 100 Hz, which
>> is
>> the standard for Linux except for Alpha machines. BTW, DECstation-Linux
>> 2.1.121 was running at 64 HZ.
> Which binaries do we talk about ? Currently i am not aware which
> binaries
> in Userland deal with the HZ value.

man times :-). Also the proc fs is affected and tools like "top" rely on
values from /proc which are derived from jiffies.
 
> Where is the difficulty in letting the Mips kernel also run at 100Hz ?

Well, the Linux/MIPS kernel is normally running at 100 Hz. Unfortunately
 the DECstation hardware doesn't allow this :-(. Exactly that is the
problem.

---
Regards,
Harald

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