Re: newbie questions about git design and features (some wrt hg)

On Tue, 30 Jan 2007, Linus Torvalds wrote:

We had this particular performance "anomaly" be discussed just the other 
week. People seem to be so used to the "file ID" mentality that has its 
roots in RCS etc, that they expect "git log <filename>" to somehow be 
faster than "git log". In git, that's simply not true. History is *always* 
seen as a "full repository history". There simply isn't anything else.

Side note: some people have talked about changing this by generating some 
kind of per-filename cache to make logging ops have an "accelerated" mode 
for the trivial cases.

So maybe git at some future date will have a special-case for a single 
filename, but that's definitely not the case today.

			Linus