Excel 2007 multi-threaded calculation boosts performance

re: Excel 2007 multi-threaded calculation boosts performance

Tim Long — Fri, 18 Aug 2006 12:31:02 GMT

What I find interesting about that benchmark is that on a dual-core system with a single thread, the calculation time goes UP by a very significant percentatge (70 seconds to 89 seconds). Even though only one thread is used, I would not have expected to see poorer performance because Windows should have transferred some load that is nothing to do with Excel to the other processor. Is this a trend with all software or something peculiar to Excel?

Feeling Stupid (part 1)

James O'Neill's blog — Fri, 18 Aug 2006 15:36:41 GMT

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re: Excel 2007 multi-threaded calculation boosts performance

MBRM — Mon, 21 Aug 2006 11:47:38 GMT

Hi Tim,

The benchmark tests were done on multiple hardware configurations – Test 1 was run on single-core CPU while Test 2 was run on dual-core CPU. We don't include the actual speed of the processors since this might be misleading without matching memory, motherboard specs etc.

Test 1 shows that Excel 2003 and Excel 2007 have the same performance on the single-core CPU, while Test 2 shows that Excel 2007 can have a big performance advantage over Excel 2003 when using the multi-threaded calculation of Excel 2007 with a multi-core CPU.

Excel Services on the Brain | Flowchart Dude

Excel Services on the Brain | Flowchart Dude — Sun, 05 Aug 2007 14:17:38 GMT

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