Reduce ram used for very large inlined index files During a clone, an inline index is not converted to a split index file until the very end. When the conversion happens, the index can be very large, and the inline index loading functions always load the entire index file into ram. This changes the revlog code to read the index in smaller chunks.

#!/bin/sh

mkdir test
cd test
echo foo>foo
hg init
hg addremove
hg commit -m 1
hg verify
hg serve -p 20059 -d --pid-file=hg.pid
cd ..

http_proxy= hg clone http://localhost:20059/ copy
cd copy
hg verify
hg co
cat foo
hg manifest
hg pull

kill `cat ../test/hg.pid`