Mercurial > hg-stable
changeset 5448:e038738714fd
revlog: avoid large yields in group()
Split large yields so that the downstream consumer (chunkbuffer) will avoid
some pain when reading ahead.
| author | Matt Mackall <mpm@selenic.com> |
|---|---|
| date | Thu, 11 Oct 2007 00:46:51 -0500 |
| parents | 56591846f819 |
| children | 17a4b20eda7b |
| files | mercurial/revlog.py |
| diffstat | 1 files changed, 8 insertions(+), 1 deletions(-) [+] |
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--- a/mercurial/revlog.py Thu Oct 11 00:46:49 2007 -0500 +++ b/mercurial/revlog.py Thu Oct 11 00:46:51 2007 -0500 @@ -1096,7 +1096,14 @@ d = self.revdiff(a, b) yield changegroup.chunkheader(len(meta) + len(d)) yield meta - yield d + if len(d) > 2**20: + pos = 0 + while pos < len(d): + pos2 = pos + 2 ** 18 + yield d[pos:pos2] + pos = pos2 + else: + yield d yield changegroup.closechunk()