Mercurial > hg-stable
changeset 4990:4491125c0f21
revlogio: speed up parsing
- precalcuate ending offset
- pull some variables into local scope
- separate inline and out of line code paths
| author | Matt Mackall <mpm@selenic.com> |
|---|---|
| date | Mon, 23 Jul 2007 20:44:08 -0500 |
| parents | 1aaed3d69772 |
| children | 9c8c42bcf17a |
| files | mercurial/revlog.py |
| diffstat | 1 files changed, 16 insertions(+), 9 deletions(-) [+] |
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--- a/mercurial/revlog.py Mon Jul 23 20:44:08 2007 -0500 +++ b/mercurial/revlog.py Mon Jul 23 20:44:08 2007 -0500 @@ -360,19 +360,26 @@ n = off = 0 # if we're not using lazymap, always read the whole index data = fp.read() - l = len(data) + l = len(data) - s + unpack = struct.unpack + append = index.append if inline: cache = (0, data) - while off + s <= l: - e = struct.unpack(indexformatng, data[off:off + s]) - index.append(e) - nodemap[e[7]] = n - n += 1 - off += s - if inline: + while off <= l: + e = unpack(indexformatng, data[off:off + s]) + nodemap[e[7]] = n + append(e) + n += 1 if e[1] < 0: break - off += e[1] + off += e[1] + s + else: + while off <= l: + e = unpack(indexformatng, data[off:off + s]) + nodemap[e[7]] = n + append(e) + n += 1 + off += s e = list(index[0]) type = gettype(e[0])