54 点作者 deafcalculus超过 6 年前

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craftyguy超过 6 年前

Dupe: <a href="https://news.ycombinator.com/item?id=18471448" rel="nofollow">https://news.ycombinator.com/item?id=18471448</a>

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gcb0超过 6 年前

to save everyone the click on the dupes:<p>craftyguy 1 day ago | unvote [-]<p>tl;dr: The cause is the Single Thread Indirect Branch Predictors (STIBP) for cross-hyperthread Spectre mitigation on Intel processors.

Bisected: The Unfortunate Reason Linux 4.20 Is Running Slower

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Bisected: The Unfortunate Reason Linux 4.20 Is Running Slower

2 条评论