Futexes optimize the time to obtain an uncontested lock without relying on the kernel; kernel intervention is required only for contested locks.

Futexes对获得非竞争锁的时间进行了优化，而不用依赖内核；只有对竞争的锁才需要内核干涉。

youdao

"It would only take one kernel in ten thousand to affect food processing."

VOA: special.2011.03.08

There you have the roots and the kernel of the so-called "Positive good thesis "About slavery.

这样你就有了奴隶制,所谓"积极的一面"的根源和依据

耶鲁公开课 - 美国内战与重建课程节选

It's all comedy, but then there is a heart, a kernel.

这很有喜剧性，但是这有着一个中心，一个内核。

耶鲁公开课 - 1945年后的美国小说课程节选

The greatest stipulation was that the raw kernel of Windows 8, the Windows NT kernel, which is the sweet-spot for true innovation, would not be accessible to Nokia.

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The contract builds on NSA's prior work in developing a set of new security controls for the Linux kernel and NAI Labs' prior work in developing a basic security policy configuration for these security controls and several additional kernel controls.

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Mundie is right though that the Tellme facility does offer Microsoft a kernel of Siri.

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