More history in perf.haskell.org graphs

[Reid Barton]

Hi Joachim,

The graphs like https://perf.haskell.org/ghc/#graph/buildtime/make are
very helpful, but I haven't found a way to adjust the range of commits
shown from the default of the last 50 commits. For example, suppose I
wanted to see the history of build time over the past 12 months and
then narrow in on commits that caused regressions. Is there a way to
do that using the https://perf.haskell.org/ghc/ website?

Failing that, is the data that goes into these graphs available for
download in some form?

Regards,
Reid Barton