[Linux] tracing related
* Ftrace 1
https://lwn.net/Articles/365835/
* Choosing a Linux Tracer
http://www.brendangregg.com/blog/2015-07-08/choosing-a-linux-tracer.html
* Monitoring dmesg in real time
#watch "dmesg | tail -f -n 40" ; show 40 line
https://lwn.net/Articles/365835/
* Choosing a Linux Tracer
http://www.brendangregg.com/blog/2015-07-08/choosing-a-linux-tracer.html
* Monitoring dmesg in real time
#watch "dmesg | tail -f -n 40" ; show 40 line
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