Autores do Blog: ELISABETH STAHL 0600029JQ8 is Chief Technical Strategist and Executive IT Specialist, IBM Systems and Technology Group, and has been working in systems performance for over 25 years.
estahl 0600029JQ8 Marcações:  specompl2001 stream sun specjbb2005 specompm2001 linpack benchmarking 2.176 Visualizações
Last night I went to Disneyland. The most awesome ride was one where they strapped you in your seat and off you went on a virtual reality flight, sweeping over the beautiful state of California. I flew over the Pacific, through vineyards, by tall buildings and over Yosemite. But of course, it wasn't real.
And that got me thinking again about Sun's new SPARC benchmark results. Besides the unimpressive SAP result I discussed yesterday, Sun also published Linpack, Stream, SPECjbb2005, SPECompM2001, and SPECompL2001 results, all equally unimpressive when it comes down to it. The IBM p5-570 SPECjbb2005 result is 1.48 times performance per core over the new SPARC result.(1) IBM remains the clear leader for SPECompM2001 (2). The IBM p5-595 demonstrates 1.71 times better performance per core on SPECompL2001 than the new SPARC result.(3) The brand new SPARC Stream result had only 20% better performance but needed 100% more cores.(4) The new Sun Linpack result finally reached a Teraflop. IBM works with Petaflops !
So make sure when you see benchmark claims you understand the reality. Now I need to go so I can schedule my hang gliding session.
(1)IBM 16-core p5-570 SPECjbb2005 result of 326,651 bops, 40,831 bops/JVM on 8 POWER5+ 2.2 GHz chips (16 cores, 2 cores/chip) vs. Sun Fire M8000 (16 chips, 32 cores, 2.4 GHz) 440,207 SPECjbb2005 bops, 27,513 SPECjbb2005 bops/JVM.
(2)IBM System p5-595 (2.3 GHz, 64 cores, 32 chips) SPECompM2001 result of 157,880 vs. Sun SPARC Enterprise M8000 (32 cores, 16 chips, 32 threads, 2.28GHz) 54352 SPECompMbase2001.
(3)IBM p5-595 (2.3 GHz, 64 cores, 32 chips) SPECompL2001 result of 1,056,459 vs. Sun SPARC Enterprise M9000 (2.4 GHz, 128 cores, 64 chips) SPECompL2001 result of 1,230,446.
(4)Sun SPARC Enterprise M9000 (128 threads, 128 cores, 64 chips, 2.4GHz) Stream result of COPY 224401.0 MB/s vs. IBM p5 595 (64 threads, 64 cores, 32 chips, 2.3GHz) COPY 186137.0 MB/s.
Sources: http://www.spec.org; http://www.sun.com/servers/sparcenterprise/benchmarks/index.html; http://www.netlib.org/benchmark/performance.pdf; http://www.cs.virginia.edu/stream/; Results as of 4/18/07.
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