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well said ... |
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|
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Alan McKinnon wrote: |
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> On Wednesday 05 March 2008, Chris Brennan wrote: |
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>> from what you pasted, you have a 32bit cpu. But you have a flag I do |
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>> as well, and that is 'ht'. Hyper-Threading is a whole different beast |
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>> I know very little about, it's more of an Intel thing for there first |
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>> generation dual-core cpu's. |
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> |
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> HT is an abomination that should not be suffered to live. It's Intel's |
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> attempt to implement application level threading in silicon and it |
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> simply does not work in practice. |
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> |
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> I've yet to benchmark any reasonably complex app that runs better with |
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> hyper-threading enabled. In fact when I still worked support at a |
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> certain database vendor we simply refused to support any of our apps |
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> running on machines where HT was enabled. |
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> |
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> Note that it wasn't "you should not do this", it was "go away and phone |
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> back when you have rebooted with sane kernel options" :-) |
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> |
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-- |
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