I just got a new laptop, and, of course, I had to try to find better OS for it. My currently installed OS versions are Microsoft Vista Home Basic 32-bit and Ubuntu Linux 7.04 64-bit.
To my disappointment, Linux 64-bit is not faster than Windows 32-bit.
Since SETI gets rid of solved workunits too quickly, here are the results rather than links to the workunits.
================ LINUX =============
CPU time 7240.77652
<core_client_version>5.8.16</core_client_version>
Optimized SETI@Home Enhanced application
Optimizers: Ben Herndon, Josef Segur, Alex Kan, Simon Zadra
Linux port: Crunch3r, Hans Dorn, Simon Zadra
Version: Linux 64-bit based on S@H V5.15 'Noo? No - Ni!'
Revision: R-2.2B|xT|FFT:IPP_SSSE3|Ben-Joe
CPUID: Intel(R) Core(TM)2 CPU T5300 @ 1.73GHz
CPUs: 1, cores: 1, cache: L1=32K, L2=2048K, L3=0K
Features: MMX SSE SSE2 SSE3 SSSE3 x86_64
Speed: 1729 MHz
Work Unit Info
True angle range: 0.425850
Spikes Pulses Triplets Gaussians Flops
0 1 6 1 16109414470855
================ WINDOWS =============
CPU time 7213.595441
<core_client_version>5.10.12</core_client_version>
Optimized SETI@Home Enhanced application
Optimizers: Ben Herndon, Josef Segur, Alex Kan, Simon Zadra
Version: Windows SSE3-Core 2 32-bit based on S@H V5.15 'Noo? No - Ni!'
Revision: R-2.2B|xT|FFT:IPP_SSE3|Ben-Joe
CPUID: Intel Core 2 Duo 'Conroe 2M'
CPUs: 1, cores: 2, threads: 1 cache: L1=32K, L2=2048K, L3=0K
Features: MMX, SSE, SSE2, SSE3, SSSE3
speed: 1729 MHz -- read MB/s: L1=6452, L2=5583, RAM=3286
Work Unit Info
True angle range: 0.426468
Restarted at 21.57 percent.
Spikes Pulses Triplets Gaussians Flops
0 0 0 1 16094383483838