Hi Elijah, On Thu, 29 Aug 2019, Elijah Newren wrote: > fast-export and fast-import can easily handle the simple rewrite that > was being done by filter-branch, and should be significantly faster on > systems with a slow fork. Timings from before and after on two laptops > that I have access to (measured via `time ./t3427-rebase-subtree.sh`, > i.e. including everything in this test -- not just the filter-branch or > fast-export/fast-import pair): > > Linux: 4.305s -> 3.684s (~17% speedup) > Mac: 10.128s -> 7.038s (~30% speedup) This patch seems to accelerate t3427 on my Windows laptop, too, from ~1m37s to ~1m17s, i.e. ~20%. Ciao, Dscho