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
|