Turning Tickless OFF

[Charlie Kravetz]

On Tue, 2008-01-15 at 06:35 -0600, Kenneth Loafman wrote:
> Is there a way, short of rebuilding the kernel, to turn tickless off on
> 32-bit Gutsy?  Perhaps an undocumented boot option or something?
> 
> I ask because a 32-bit Gutsy virtual guest with tickless slows the
> entire system to a crawl when run under VMware on a 64-bit host.  I
> would like to have a 32-bit Gutsy for testing, but cannot run tickless
> without seriously impacting host performance.
> 
> ...Ken
> 
I don´t know if this works in your situation (64-bit host with 32-bit
guest), but under VirtualBox using 32-bit host and guest I use

nohz=off

added to the kernel line in /boot/grub/menu.1st to turn off tickless
timer.

good luck,

-- 
Charlie Kravetz 
Linux Registered User Number 425914            [http://counter.li.org/]
Never let anyone steal your DREAM.           [http://keepingdreams.com]