Re: HZ=1024 for CPU >= 586?

Erik Corry (erik@arbat.com)
Mon, 18 Jan 1999 10:44:53 +0100

In article <19990118083931.D10800@knt.terra.vein.hu> you wrote:
> On Fri, Jan 15, 1999 at 11:01:09PM -0800, Christoph Lameter wrote:
>> I recompiled 2.2.0pre7ac4 with HZ=1024 and the responsiveness of the
>> Mousecursor under X is significantly improved. Lagging keyboard input etc
>> etc have all been reduced.

Sounds like a bug. It shouldn't make much difference.

>> Could we have the kernel increase the HZ for the modern faster CPUs?
>> F.e. leave it at 100 HZ for 386 486. Switch to 1024 for 586 and higher.

Note that Linus has said that HZ is 100 to user processes
now and forever, so anywhere where the user space can see
what HZ is (some things in /proc, a few ioctls, etc.) it
should stay at 100. Internally you can use higher values.

-- 
Erik Corry erik@arbat.com           Ceterum censeo, Microsoftem esse delendam!


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