Sy: Time spent running kernel code.

sy：用于运行内核代码的时间。

youdao

Of course, not all sections of the kernel code can be preempted.

当然，不是所有的内核代码段都可以被抢占。

youdao

Certain critical sections of the kernel code are locked against preemption.

可以锁定内核代码的关键部分，不允许抢占。

youdao

This makes for an easy root, Alephzain writes, but leaves devices open to attack -- allowing Kernel code injections and RAM dumps from malware-laden apps from the Google Play store.

ENGADGET: Security exploit opens Samsung Galaxy S III, Note II to attack, could let apps from Google Play write to Kernel

Ubuntu is the most popular operating system to be based on the Linux kernel - the code that lets software and hardware work together.

BBC: Ubuntu operating system comes to Android smartphones

Linaro engineers, leveraging their extensive embedded knowledge, will contribute to a wide range of open source projects covering areas such as tools, kernel, graphics and boot code.

ENGADGET: ARM, Samsung, IBM, Freescale, TI and more join to form Linaro, speed rollout of Linux-based devices