For a long time we have used SBUs as an indication of how long it
will take to build a package, and until recently my own figures,
when I compared them, seemed to match the book.
But when I upgraded my installed firefoxes to 57.0 I was, for once,
ready ahead of time (before the official release date) and I updated
my "supported" older systems before doing the book. The SBUs were
all over the place - from memory, 60 or 70 SBU on a fast-ish machine
using 4 cores, but 100 SBU on my old i3. I put some of that down to
a lack of memory (only 4GB), but later tests showed it was only
barely using swap.
Over the last 24 hours I've been updating qtwebengine and I see
similar variation in the number of SBUs. I wonder if it is worth
noting that the timings, particularly for large slow C++ programs,
can vary a lot between different machines ?
CC'ing -support in case the people there have different opinions on
this.
ĸen
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