PAE kernel default with 1.5gb of ram?

Dave Jones davej at redhat.com
Mon Dec 25 18:07:23 UTC 2006


On Mon, Dec 25, 2006 at 01:22:30PM +0530, Rahul Sundaram wrote:
 > Dave Jones wrote:
 > 
 > > It's a teeny bit slower if you don't need it. The structures describing
 > > pages of memory [known as PTE's] are larger, so take up more RAM, and
 > > take bit longer to fetch, but in practice, you'll usually not even notice
 > > the difference.  It's hard to make it show up even on benchmarks with
 > > modern CPUs.
 > 
 > Is it good enough that we can consider making the default kernel PAE and 
 > dropping the variant? 

No. PAE kernels won't boot on older hardware that doesn't have PAE.

		Dave

-- 
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