Note: This is a beta release of Red Hat Bugzilla 5.0. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Also email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback here.
Bug 87475 - Value of HZ has changed?
Summary: Value of HZ has changed?
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: kernel
Version: 8.0
Hardware: i686
OS: Linux
medium
low
Target Milestone: ---
Assignee: Arjan van de Ven
QA Contact: Brian Brock
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2003-03-27 13:49 UTC by Justin Skists
Modified: 2007-04-18 16:52 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2003-03-27 14:05:29 UTC


Attachments (Terms of Use)

Description Justin Skists 2003-03-27 13:49:36 UTC
From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 4.0)

Description of problem:
I beleive the same problem occurs with kernel-source-2.4.18-27.8.0, aswell.

Compiling my company's driver against the redhat kernel (as opposed to the 
kernel 2.4.18) caused a subtle behavour change in the driver.

I have tracked the problem down to the kernel define "HZ" being set to '512' as 
opposed to being '100' as in the kernel.org kernel.

Version-Release number of selected component (if applicable):
kernel-source-2.4.18-14

How reproducible:
Always

Steps to Reproduce:
1. create minimal driver to prink out value of HZ
2. compile and load driver for stock redhat 8 kernel
3. compile and load driver for kernel.org 2.4.18 kernel
4. compare results
    

Actual Results:  the kernel define "HZ" being set to '512'....

Expected Results:  ...as opposed to being '100' as in the kernel.org kernel.

Additional info:

I'm not sure if this is a bug or intentional.

Comment 1 Arjan van de Ven 2003-03-27 14:05:29 UTC
this is fully intentional; it helps interactive performance


Note You need to log in before you can comment on or make changes to this bug.