Mercurial > hg
changeset 30336:7ddc8f8d7712
perf: support bdiffing multiple revisions in a single revlog
This is useful for testing bdiff performance on several revision
pairs at a time.
| author | Gregory Szorc <gregory.szorc@gmail.com> |
|---|---|
| date | Sun, 06 Nov 2016 11:01:25 -0800 |
| parents | 7d91a085ebe6 |
| children | 6ecad4b73569 |
| files | contrib/perf.py tests/test-contrib-perf.t |
| diffstat | 2 files changed, 16 insertions(+), 8 deletions(-) [+] |
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--- a/contrib/perf.py Sun Nov 06 09:51:14 2016 -0800 +++ b/contrib/perf.py Sun Nov 06 11:01:25 2016 -0800 @@ -747,9 +747,17 @@ timer(d) fm.end() -@command('perfbdiff', revlogopts + formatteropts, '-c|-m|FILE REV') -def perfbdiff(ui, repo, file_, rev=None, **opts): - """benchmark a bdiff between a revision and its delta parent""" +@command('perfbdiff', revlogopts + formatteropts + [ + ('', 'count', 1, 'number of revisions to test (when using --startrev)')], + '-c|-m|FILE REV') +def perfbdiff(ui, repo, file_, rev=None, count=None, **opts): + """benchmark a bdiff between revisions + + By default, benchmark a bdiff between its delta parent and itself. + + With ``--count``, benchmark bdiffs between delta parents and self for N + revisions starting at the specified revision. + """ if opts.get('changelog') or opts.get('manifest'): file_, rev = None, file_ elif rev is None: @@ -759,10 +767,10 @@ r = cmdutil.openrevlog(repo, 'perfbdiff', file_, opts) - node = r.lookup(rev) - rev = r.rev(node) - dp = r.deltaparent(rev) - textpairs.append((r.revision(dp), r.revision(node))) + startrev = r.rev(r.lookup(rev)) + for rev in range(startrev, min(startrev + count, len(r) - 1)): + dp = r.deltaparent(rev) + textpairs.append((r.revision(dp), r.revision(rev))) def d(): for pair in textpairs:
--- a/tests/test-contrib-perf.t Sun Nov 06 09:51:14 2016 -0800 +++ b/tests/test-contrib-perf.t Sun Nov 06 11:01:25 2016 -0800 @@ -50,7 +50,7 @@ perfancestorset (no help text available) perfannotate (no help text available) - perfbdiff benchmark a bdiff between a revision and its delta parent + perfbdiff benchmark a bdiff between revisions perfbranchmap benchmark the update of a branchmap perfcca (no help text available)