Before New Year's Day

When we stop at some festivals, we will think of our network life. My son's blog has not been updated for a while, and csdn has not been updated for almost two months, my son grew up very quickly. After work, he was very happy. The family members who were too busy to take care of him felt deeply guilty.

Time management is still not good enough. Let's turn it out and adjust it.

I don't know if I can finish my vacation on New Year's Day.

Recently, many things need to be updated on csdn. Simply first, list them and complete them one by one:

1. Linux subsystem time Subsystem: it covers tick, timer, tickless, hrtimer, and other technologies. I don't know if cgroup is suitable here. I should consider it when writing it.

2. Linux subsystem Tracing System: describes the principle of lttng and Its Usage and limitations.

3. Linux-based Debug: Principle of DEBUG

4. It seems that the UART sub-system has not been updated to the blog. This must be completed immediately.