Re: [RFC] must fix lists

[Mikael Pettersson]

On Thu, 23 Oct 2003 22:11:35 +0100, Alan Cox wrote:
>On Mer, 2003-10-22 at 03:50, Albert Cahalan wrote:
>> The system in question would also lose time when
>> under heavy load. Note that HZ is now 1000 HZ.
>> If interrupts are kept off for too long or an
>> SMI grabs the CPU...
>
>With a lot of laptops this is a huge problem. Its one of the reasons Red
>Hat went back to 100Hz in the RH 2.4 tree. With many laptops your clock
>becomes junk at 1Khz. It will be interesting to see if the ACPI timers
>help but that wont solve things for older laptops.

Or for really old desktops. My 486 loses time at a rate of about
2 minutes per hour when running 2.5/2.6 and doing lots of disk I/O.
Changing HZ back to 100 solves that problem.

I think we need a CONFIG_HZ.

/Mikael
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