----- Original Message ----- > http://www.phoronix.com/scan.php?page=article&item=ubuntu_natty_pae64&num=3 > > "When it comes to running the Apache web-server in these different > configurations, there is a 3% improvement when moving from the i686 > to i686 PAE kernel and 2% on top of that when moving to the x86_64 > Ubuntu. With the newer Core i7 Sandy Bridge notebook there is a 6% > boost in performance with the PAE kernel, but the 64-bit performance > strangely suffers a setback. In this test and the rest, they are > built from source for the respective architecture." > > Anyone have any theory on why 64-bit was so much worse (suggest
On 64-bit on Core i7 (in this benchmark) -- that's a little more specific. So it'd be worth looking at these two CPUs and see where they differ: Intel Core 2 Duo T9300 (2.50GHz dual-core) http://ark.intel.com/Product.aspx?id=33917 vs Core i7 2820QM (2.30GHz quad-core + Hyper Threading) http://ark.intel.com/Product.aspx?id=52227 Which in essence is: 6MB L2 Cache vs 8MB L2 Cache. > looking at general article for context rather than solely the except > above)? > > -Andy i -- Igor Galić Tel: +43 (0) 664 886 22 883 Mail: [email protected] URL: http://brainsware.org/
