On Fri, Nov 04, 2016 at 03:45:09PM -0700, Stefan Beller wrote: > On Fri, Nov 4, 2016 at 12:49 PM, Markus Hitter <mah@xxxxxxxxxxx> wrote: > > > > Hello all, > > +cc Paul Mackeras, who maintains gitk. Thanks. > > > > after Gitk brought my shabby development machine (Core2Duo, 4 GB RAM, Ubuntu 16.10, no swap to save the SSD) to its knees once more than I'm comfortable with, I decided to investigate this issue. > > > > Result of this investigation is, my Git repo has a commit with a diff of some 365'000 lines and Gitk tries to display all of them, consuming more than 1.5 GB of memory. > > > > The solution is to cut off diffs at 50'000 lines for the display. This consumes about 350 MB RAM, still a lot. These first 50'000 lines are shown, followed by a copyable message on how to view the full diff on the command line. Diffs shorter than this limit are displayed as before. That sounds reasonable. > > Bikeshedding: I'd argue to even lower the number to 5-10k lines. I could go with 10k. > > > > > To test the waters whether such a change is welcome, here's the patch as I currently use it. If this patch makes sense I'll happily apply change requests and bring it more in line with Git's patch submission expectations. > > I have never contributed to gitk myself, > which is hosted at git://ozlabs.org/~paulus/gitk > though I'd expect these guide lines would roughly apply: > https://github.com/git/git/blob/master/Documentation/SubmittingPatches Paul.