"ccache" effect on repeated builds
Just to proof my experimentally gained feeling, I did the exact
measurement of ccache
I measured five parallel (10/4) builds and the average values is in the following graph:
Build times are one hour, one hour and 3 minutes and 27 minutes. So
the worst case with ccache and cold cache where ccache is populating
the cache took 3 minutes (1/20th of the total build time).
This is the last part of our "highly accurate measurements of random
and inaccurate build times configuration" series
again like to thank David Richards for his wonderful service and the
possibility to test this machine.