Turning Tickless OFF

[Kenneth Loafman]

Charlie Kravetz wrote:
> 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.

Thanks!  I set it for both host and guest and it seems to work.

...Ken