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On Monday 06 November 2006 13:49, Jack Lloyd wrote: |
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> On Mon, Nov 06, 2006 at 01:05:31PM +0100, Hemmann, Volker Armin wrote: |
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> > lets ask the other way round. Why should it speed up anything to have |
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> > X>number of cores? Instead of a single thread per core, compiling |
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> > happily, you have two or more competing for one core and regularly kick |
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> > out each others data from the cache. |
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> |
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> To account for I/O wait states |
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and how often does something wait for io and how often does some data is |
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purged from the cache, because the other make instance is activated? |
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When I switched from j2 to j1, compiling did not take any longer - but the box |
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way much more usable. |
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-- |
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