Mercurial > hg-stable
changeset 8318:6b8513f8274a
revlog: add cache priming for reconstructing delta chains
| author | Matt Mackall <mpm@selenic.com> |
|---|---|
| date | Thu, 07 May 2009 19:39:45 -0500 |
| parents | 5cdf4067857a |
| children | b7017097a4ec |
| files | mercurial/revlog.py |
| diffstat | 1 files changed, 10 insertions(+), 0 deletions(-) [+] |
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--- a/mercurial/revlog.py Thu May 07 19:39:45 2009 -0500 +++ b/mercurial/revlog.py Thu May 07 19:39:45 2009 -0500 @@ -949,6 +949,14 @@ return self._loadchunk(offset, length, df) + def _prime(self, startrev, endrev, df): + start = self.start(startrev) + end = self.end(endrev) + if self._inline: + start += (startrev + 1) * self._io.size + end += (startrev + 1) * self._io.size + self._loadchunk(start, end - start, df) + def chunk(self, rev, df=None): start, length = self.start(rev), self.length(rev) if self._inline: @@ -989,10 +997,12 @@ self._loadindex(base, rev + 1) if not self._inline and rev > base + 1: df = self.opener(self.datafile) + self._prime(base, rev, df) else: self._loadindex(base, rev + 1) if not self._inline and rev > base: df = self.opener(self.datafile) + self._prime(base, rev, df) text = self.chunk(base, df=df) bins = [self.chunk(r, df) for r in xrange(base + 1, rev + 1)]