I'm experimenting with Kernel Preemption
Rahul Sundaram
sundaram at redhat.com
Thu May 12 06:26:16 UTC 2005
Juan Carlos Castro y Castro wrote:
> (I posted this in fedora-list and Rahul Sundaram suggested I post it
> here instead)
>
> Not on Fedora's kernel sources, but with 2.6.11ac7. I based my config
> on /boot/config-2.6.11-1.14_FC3 and dealt with the additional options
> with "make oldconfig". Then I browsed the configuration with "make
> menuconfig", just for fun.
>
> I saw kernel preemption was turned off, so I turned on. Afterwards, I
> notice the system is noticeably faster. Bootup is faster. Shutdown is
> faster. The Red Hat manu on GNOME pops up WAY faster. OpenOffice.org
> loading is faster. I suspect other things are faster too, but I'd have
> to time them.
>
> So my question is: why isn't preemption enabled in the FC3 packaged
> kernel? Does it conflict with something I haven't encountered yet?
> maybe some esoteric hardware combination? My hardware data is below.
>
> Another thing: what crucial patch, if any, am I missing by using
> 2.6.11ac7 instead of the FC3 packaged kernel?
for the record, this has answered by Dave Jones on the fedora users list
itself
regards
Rahul
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