Mercurial > hg-stable
changeset 10620:1ee14abe07b4
shrink-revlog: instrument sort code to record statistics.
Notably, count "suboptimal" nodes (predecessor is not first parent)
and (with -v) report them at the end of the run.
| author | Greg Ward <greg-hg@gerg.ca> |
|---|---|
| date | Tue, 09 Mar 2010 21:13:39 -0500 |
| parents | bcdf37680569 |
| children | c93f0a23f381 |
| files | contrib/shrink-revlog.py |
| diffstat | 1 files changed, 12 insertions(+), 0 deletions(-) [+] |
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--- a/contrib/shrink-revlog.py Tue Mar 09 22:18:37 2010 +0100 +++ b/contrib/shrink-revlog.py Tue Mar 09 21:13:39 2010 -0500 @@ -53,8 +53,19 @@ ui.status(_('sorting revs\n')) visit = root ret = [] + + # suboptimal: nodes whose predecessor is not first parent + suboptimal = 0 + while visit: i = visit.pop(0) + # revlog will compute delta relative to ret[-1], so keep track + # of nodes where this might result in a large delta + parents = rl.parentrevs(i) + if ret: + if ret[-1] != parents[0]: + suboptimal += 1 + ret.append(i) if i not in children: # This only happens if some node's p1 == p2, which can @@ -67,6 +78,7 @@ if len(parents_unseen) == 0: next.append(c) visit = next + visit + ui.note(_('%d suboptimal nodes\n') % suboptimal) return ret def writerevs(ui, r1, r2, order, tr):