You can run Open vSwitch entirely from user space, but doing so results in degradation of performance.

您可以在用户空间完全运行 Open vSwitch，但是这么做会导致性能的下降。

youdao

This sort of environment leads to inordinate stress and degradation of performance: it must be stopped.

这类环境导致过度紧张和执行力下降：它必须停止。

youdao

To prevent leakage current on the switch card, take special care when handling to prevent degradation of performance.

为预防开关卡上的漏流，在防止性能劣化时要特别注意。

youdao

Indeed what happens when that already-tricky situation is compounded dramatically as an additional 40 billion devices get connected to the Internet over the next several years and begin streaming out massive volumes of data about speeds and location and performance degradation and volume of usage and even such vital but narrowly focused applications such as whether or not your morning coffee is ready?

FORBES: Big Data Set to Explode as 40 Billion New Devices Connect to Internet

Apparently the level of performance degradation should be comparable iPhone 3G vs. 3GS, which doesn't sound too horrible.

ENGADGET: Palm's webOS PDK beta adds Pixi native development, PDK'd apps will hit the Catalog mid year

We expect significant growth in external storage devices as network use increases, with resulting congestion, performance degradation and loss of availability.

FORBES: Changing Digital Storage Requirements for Clouds and Mobile Devices