[kwlug-disc] [Phoronix] Ubuntu 32-bit, 32-bit PAE, 64-bit Kernel Benchmarks

Lori Paniak ldpaniak at fourpisolutions.com
Thu Dec 31 04:45:24 EST 2009


A while back, someone was asking about the performance differential between 32-bit and 64-bit kernels.  Here is some data for ubuntu karmic:

http://www.phoronix.com/scan.php?page=article&item=ubuntu_32_pae&num=1

Short version:  Not much difference unless you are serving web pages,
doing SSL or disk I/O.  For those cases, 64-bit may be an order of
magnitude faster.
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