redhat@mckerrs.net wrote:
Donald Maner wrote:
I compiled my own kernels for c4 and c5 that dropped the HZ down to 100. For me, it's a big improvement, especially when it comes to keeping the clock correct in the vm. And yes, performance is slightly better, because the vms aren't killing the hardware with unnecessary cpu usage trying to process all those ticks.
Thanks for the kernels. Hopefully they will be eventually added to the centosplus repos. ________________________________________ From: centos-bounces@centos.org [centos-bounces@centos.org] On Behalf Of Ray Van Dolson [rvandolson@esri.com] Sent: Friday, August 03, 2007 1:35 PM To: centos@centos.org Subject: Re: [CentOS] CentOS 4 vs 5 for VMware?
Also, there is a special kernel that helps out on running VMWare that changes the default speed of the system timer, reducing the LA on the host system especially if your guests are mostly idle. The kernel is available for both 4 and 5. Please look at http://bugs.centos.org/view.php?id=2189 for more info.
Very interesting. Wasn't aware of that. Thanks for posting. Have you noticed tangible differences when running stock vs the kernels mentioned there?
The kernels are available in testing form here:
http://people.centos.org/~hughesjr/vmware-kernels/
Johnny, will these kernels eventually be pushed into centosplus ?
Maybe ... we are trying to work out a way to prevent conflict. Users seem to have a problem with more than 1 item of the same type in a specific repo. We will put out instructions on how to use "exclude=whatever" in yum, but they don't and then we get a hundred bug reports / e-mails that the plus kernel replaces the vmware kernel or the other way around.
If we can have them easily coexist in the same repo and make it EASY for the users and provide the content, then we will put them there, otherwise (or until then) people will need to look for it here.
Thanks, Johnny Hughes