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by hermitdev
2927 days ago
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Except the performance of hyper-threading today is far better than it was first introduced. I had a dual-socket P4 Xeon box w/ HT around 2003. Single-threaded performance with HT enabled was around 70% of what it was with HT disabled. Today, I think you'd see only about 95-98% of enabled vs disabled performance. I don't have hard numbers to back this up, it's purely my personal experience/recollection. On my 2 socket P4 Xeon box, I disabled HT. On my current I7 6-core box, I have HT on. |
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