Victoria Dye <vdye@xxxxxxxxxx> writes: > Shuqi Liang wrote: >> Update 'git write-tree' to allow using the sparse-index in memory >> without expanding to a full one. >> >> The recursive algorithm for update_one() was already updated in 2de37c5 >> (cache-tree: integrate with sparse directory entries, 2021-03-03) to >> handle sparse directory entries in the index. Hence we can just set the >> requires-full-index to false for "write-tree". >> >> The `p2000` tests demonstrate a ~96% execution time reduction for 'git >> write-tree' using a sparse index: >> >> Test before after >> ----------------------------------------------------------------- >> 2000.78: git write-tree (full-v3) 0.34 0.33 -2.9% >> 2000.79: git write-tree (full-v4) 0.32 0.30 -6.3% >> 2000.80: git write-tree (sparse-v3) 0.47 0.02 -95.8% >> 2000.81: git write-tree (sparse-v4) 0.45 0.02 -95.6% > > Please update your commit message to explain only the incremental updates on > top of 1a65b41b38a (write-tree: integrate with sparse index, 2023-04-03); > that patch's message (what you have here) does not accurately describe what > _this_ patch is doing. Good point. In addition, as this is the first iteration of a follow-up topic, "v4" on the subject line is a bit misleading. Let's treat it as a new and separate topic that build on top of the previous achievement. Thanks for working on this topic and mentoring a new contributor.
