Нотатки

https://en.wikipedia.org/wiki/Time_series_database RRDtool ( round-robin database tool ) aims to handle time series data such as network bandwidth , temperatures or CPU load. The data is stored in a circular buffer based database , thus the system storage footprint remains constant over time. https://en.wikipedia.org/wiki/RRDtool

To parse some text and extract matching items use:  $ echo " something " | egrep -o " regex "

To have Qt types in pretty shape in XCode lldb debugger use code from KDevelop project: Clone  git://anongit.kde.org/kdevelop command script import /Users/oomel/kdevelop/plugins/lldb/formatters/qt.py  Enjoy! This has to be done only once.