Jeff King <peff@xxxxxxxx> writes: > That being said, we do have an index extension to store the tree sha1 of > whole directories (i.e., we populate it when we write a whole tree or > subtree into the index from the object db, and it becomes invalidated > when a file becomes modified). This optimization is used by things like > "git commit" to avoid having to recreate the same sub-trees over and > over when creating tree objects from the index. But we could also use it > here to avoid having to even read the sub-tree objects from the object > db. Like b65982b (Optimize "diff-index --cached" using cache-tree, 2009-05-20) perhaps? -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html