Mercurial > hg
changeset 18018:0fed3fe45ea7
dirstate: avoid use of zip on big lists
In a clean working directory containing 170,000 tracked files, this
improves performance of "hg --time diff" from 1.69 seconds to 1.43.
This idea is due to Siddharth Agarwal.
| author | Bryan O'Sullivan <bryano@fb.com> |
|---|---|
| date | Fri, 30 Nov 2012 15:55:08 -0800 |
| parents | 74912fe3d718 |
| children | e248bff2d8dd |
| files | mercurial/dirstate.py |
| diffstat | 1 files changed, 3 insertions(+), 2 deletions(-) [+] |
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--- a/mercurial/dirstate.py Fri Nov 30 15:55:07 2012 -0800 +++ b/mercurial/dirstate.py Fri Nov 30 15:55:08 2012 -0800 @@ -696,8 +696,9 @@ # step 3: report unseen items in the dmap hash if not skipstep3 and not exact: visit = sorted([f for f in dmap if f not in results and matchfn(f)]) - for nf, st in zip(visit, util.statfiles([join(i) for i in visit])): - results[nf] = st + nf = iter(visit).next + for st in util.statfiles([join(i) for i in visit]): + results[nf()] = st for s in subrepos: del results[s] del results['.hg']