Optimize manifest.add Testing shows that manifest.add is spending a significant percentage of its time running calcoffsets and doing text = "".join(addlist). This patch removes the need for both of these by storying the manifest in a character array, and using a modified bisect search to find lines without the help of a separate index of line offsets. manifest.add was also reworked to push delta construction/combination into the main loop. Time to apply 2751 patches (without psyco, ext3 noatime,data=writeback): Stock hg: 4m45s real 3m32s user 55s sys patched: 2m48s real 1m53s user 43s sys quilt: 2m30s real 45s user 50s sys (quilt does much more io...)

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#!/bin/sh

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set -e

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mkdir r1

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cd r1

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hg init

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echo a > a

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hg addremove

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hg commit -m "1" -d "0 0"

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hg clone . ../r2

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cd ../r2

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hg up

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echo abc > a

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hg diff | sed -e "s/\(+++ [a-zA-Z0-9_/.-]*\).*/\1/" \

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              -e "s/\(--- [a-zA-Z0-9_/.-]*\).*/\1/"

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cd ../r1

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echo b > b

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echo a2 > a

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hg addremove

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hg commit -m "2" -d "0 0"

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cd ../r2

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hg -q pull ../r1

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hg status

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hg --debug up

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hg --debug up -m

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hg parents

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hg -v history

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hg diff | sed -e "s/\(+++ [a-zA-Z0-9_/.-]*\).*/\1/" \

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              -e "s/\(--- [a-zA-Z0-9_/.-]*\).*/\1/"

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