On Thu, Jan 05, 2017 at 04:07:58PM +0100, Raphael Hertzog wrote: > On Thu, 05 Jan 2017, Santiago Vila wrote: > > It depends. My goal is to build 25000 source packages in a row and have > > 0.5 failures on average in total (i.e. closer to 0 than to 1). > > > > If we have 50 packages which FTBFS randomly, they should fail less > > than 1% on average. > > > > One week every 4 years is more than 7% of the time. Too much for my taste. > > Your mathematics are broken :-) > > 52 weeks per year, 1 week out of 4 years = 1 / (4*52) = 0.0048 < 0.5%
Ooops! You are right. I did 7/365.25*4 by mistake, not 7/(365.25*4)... Thanks a lot.