Mercurial > public > mercurial-scm > hg

comparison mercurial/util.py @ 30181:7356e6b1f5b8

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
util: increase filechunkiter size to 128k util.filechunkiter has been using a chunk size of 64k for more than 10 years, also in years where Moore's law still was a law. It is probably ok to bump it now and perhaps get a slight win in some cases. Also, largefiles have been using 128k for a long time. Specifying that size multiple times (or forgetting to do it) seems a bit stupid. Decreasing it to 64k also seems unfortunate. Thus, we will set the default chunksize to 128k and use the default everywhere.
author Mads Kiilerich <madski@unity3d.com>
date Fri, 14 Oct 2016 01:53:15 +0200
parents 9b230a8e6008
children 6a8aff737a17 b496a464399c
comparison
equal deleted inserted replaced
30180:736f92c44656 30181:7356e6b1f5b8
1682 self._chunkoffset += left 1682 self._chunkoffset += left
1683 left -= chunkremaining 1683 left -= chunkremaining
1684 1684
1685 return ''.join(buf) 1685 return ''.join(buf)
1686 1686
1687 def filechunkiter(f, size=65536, limit=None): 1687 def filechunkiter(f, size=131072, limit=None):
1688 """Create a generator that produces the data in the file size 1688 """Create a generator that produces the data in the file size
1689 (default 65536) bytes at a time, up to optional limit (default is 1689 (default 131072) bytes at a time, up to optional limit (default is
1690 to read all data). Chunks may be less than size bytes if the 1690 to read all data). Chunks may be less than size bytes if the
1691 chunk is the last chunk in the file, or the file is a socket or 1691 chunk is the last chunk in the file, or the file is a socket or
1692 some other type of file that sometimes reads less data than is 1692 some other type of file that sometimes reads less data than is
1693 requested.""" 1693 requested."""
1694 assert size >= 0 1694 assert size >= 0