Ubuntu 12.04 x86_64 64-bit vs. 32-bit performance on Intel Core i7 notebook. 32-bit Ubuntu Linux benchmarking was with the 32-bit and 32-bit PAE (Physical Address Extensions) kernels. Testing of 8 February Precise Pangolin development snapshot, all other software versions/configurations remained the same besides swapping the kernels. Testing for a future article on Phoronix.com by Michael Larabel.
Compare your own system(s) to this result file with the
Phoronix Test Suite by running the command:
phoronix-test-suite benchmark 1202086-BY-3264UBUNT30
32-bit vs 64-bit - Ubuntu 12.04 LTS,
"PostMark 1.51 - Disk Transaction Performance",
Higher Results Are Better
"Ubuntu 12.04 64-bit",3125,3125,3125,3125,3125
"Ubuntu 12.04 32-bit PAE",595,581,581,581,595
"Unity 12.04 32-bit",595,581,595,581,581
"OpenSSL 1.0.0e - RSA 4096-bit Performance",
Higher Results Are Better
"Ubuntu 12.04 64-bit",42.1,41.9,41.9,42.1
"Ubuntu 12.04 32-bit PAE",19.1,19,19.1,19.1
"Unity 12.04 32-bit",19,19.1,19.1,19
"C-Ray 1.1 - Total Time",
Lower Results Are Better
"Ubuntu 12.04 64-bit",107.086,107.102,107.023
"Ubuntu 12.04 32-bit PAE",173.652,173.861,173.773
"Unity 12.04 32-bit",173.799,173.895,173.984
"Timed HMMer Search 2.3.2 - Pfam Database Search",
Lower Results Are Better
"Ubuntu 12.04 64-bit",27.90494799614,27.825625896454,27.760591030121
"Ubuntu 12.04 32-bit PAE",35.643686056137,35.745896816254,35.830270051956
"Unity 12.04 32-bit",35.507905960083,35.697442054749,35.673503875732
"Apache Benchmark 2.2.21 - Static Web Page Serving",
Higher Results Are Better
"Ubuntu 12.04 64-bit",13421.84,13518.18,13658.74
"Ubuntu 12.04 32-bit PAE",13720.07,13668.52,13570.2
"Unity 12.04 32-bit",10461.39,11101.11,10588.86
"Himeno Benchmark 3.0 - Poisson Pressure Solver",
Higher Results Are Better
"Ubuntu 12.04 64-bit",1068.321672,1070.69471,1062.060537
"Ubuntu 12.04 32-bit PAE",850.835231,854.906643,849.959893
"Unity 12.04 32-bit",854.796018,850.847448,853.131506
"Timed MAFFT Alignment 6.864 - Multiple Sequence Alignment",
Lower Results Are Better
"Ubuntu 12.04 64-bit",31.04812502861,30.989963054657,30.929630041122
"Ubuntu 12.04 32-bit PAE",38.606887102127,38.755171060562,38.888336896896
"Unity 12.04 32-bit",38.741880893707,38.706962823868,38.610994100571
"Smallpt 1.0 - Global Illumination Renderer; 100 Samples",
Lower Results Are Better
"Ubuntu 12.04 64-bit",246,246,245
"Ubuntu 12.04 32-bit PAE",298,297,298
"Unity 12.04 32-bit",298,298,299
"x264 2011-12-06 - H.264 Video Encoding",
Higher Results Are Better
"Ubuntu 12.04 64-bit",58.05,58.98,58.84
"Ubuntu 12.04 32-bit PAE",51.05,51.11,50.57
"Unity 12.04 32-bit",51.17,51.11,51.2
"LAME MP3 Encoding 3.99.3 - WAV To MP3",
Lower Results Are Better
"Ubuntu 12.04 64-bit",22.877841949463,22.972263097763,22.948337078094,22.800312042236,22.98419213295
"Ubuntu 12.04 32-bit PAE",25.940540075302,25.995827913284,25.893217086792,25.866678953171,25.905673980713
"Unity 12.04 32-bit",25.92916893959,26.016914844513,25.841511964798,25.968917131424,25.798491954803
"VP8 libvpx Encoding 0.9.7-p1 - vpxenc",
Higher Results Are Better
"Ubuntu 12.04 64-bit",9.76,10.11,9.8
"Ubuntu 12.04 32-bit PAE",8.74,8.8,8.89
"Unity 12.04 32-bit",9.06,9.11,9.16
"7-Zip Compression 9.20.1 - Compress Speed Test",
Higher Results Are Better
"Ubuntu 12.04 64-bit",8608,8886,8883
"Ubuntu 12.04 32-bit PAE",7691,7945,8041
"Unity 12.04 32-bit",8077,8008,7886
"Timed MrBayes Analysis 3.1.2 - Primate Phylogeny Analysis",
Lower Results Are Better
"Ubuntu 12.04 64-bit",34.737630844116,35.097607135773,34.987174034119
"Ubuntu 12.04 32-bit PAE",36.761551856995,37.035570144653,37.213825941086
"Unity 12.04 32-bit",36.99969291687,37.088618040085,37.108260154724
"OpenArena 0.8.5 - Resolution: 1600 x 900",
Higher Results Are Better
"Ubuntu 12.04 64-bit",95.4,94.3,94.6
"Ubuntu 12.04 32-bit PAE",95.1,94.9,94.3
"Unity 12.04 32-bit",95.2,95.5,95.2