private void checkFileSneakerPerformance() throws Exception {
HgChangesetFileSneaker fs1 = new HgChangesetFileSneaker(hgRepo);
HgChangesetFileSneaker fs2 = new HgChangesetFileSneaker(hgRepo);
fs1.followRenames(true);
fs2.followRenames(true);
Nodeid cset = hgRepo.getChangelog().getRevision(2);
Path fname = Path.create("dir9/file9"); // close to the manifest end
fs1.changeset(cset);
fs2.changeset(cset);
// hgRepo.getManifest().getFileRevision(TIP, fname);