From: Paul Mackerras Date: Sun, 10 Sep 2006 22:41:20 GMT Subject: Re: Change set based shallow clone Message-ID: <17668.38032.20688.991295@cargo.ozlabs.ibm.com> In-Reply-To: Linus Torvalds writes: > So we may do a fork/exit in a millisecond, but on the other hand, we can > generally open a file in a microsecond. So we're definitely talking about > several orders of magnitude difference.. Unless the file isn't in memory, in which case it's probably around a millisecond or more... Do you think there is any way to speed up the cold-cache case for git-ls-remote and git-rev-parse with thousands of heads and tags? Paul.