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nodemap: add a (python) index class for persistent nodemap testing Using the persistent nodemap require a compeling performance boost and an existing implementation. The benefit of the persistent nodemap for pure python code is unclear and we don't have a C implementation for it. Yet we would like to actually start testing it in more details and define an API for using that persistent nodemap. We introduce a new `devel` config option to use an index class dedicated to Nodemap Testing. This feature is "pure" only because having using a pure-python index with the `cext` policy proved more difficult than I would like. There is nothing going on in that class for now, but the coming changeset will change that. Differential Revision: https://phab.mercurial-scm.org/D7840
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Wed, 15 Jan 2020 15:48:09 +0100
parents 563dfdfd01a4
children 20e125cdd719
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1 ===================================
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2 Test the persistent on-disk nodemap
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3 ===================================
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6 $ hg init test-repo
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7 $ cd test-repo
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8 $ cat << EOF >> .hg/hgrc
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9 > [experimental]
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10 > exp-persistent-nodemap=yes
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11 > [devel]
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12 > persistent-nodemap=yes
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13 > EOF
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14 $ hg debugbuilddag .+5000
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15 $ f --size .hg/store/00changelog.n
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16 .hg/store/00changelog.n: size=18
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17 $ f --sha256 .hg/store/00changelog-*.nd
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18 .hg/store/00changelog-????????????????.nd: sha256=b961925120e1c9bc345c199b2cc442abc477029fdece37ef9d99cbe59c0558b7 (glob)
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19 $ hg debugnodemap --dump-new | f --sha256 --size
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20 size=122880, sha256=b961925120e1c9bc345c199b2cc442abc477029fdece37ef9d99cbe59c0558b7
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21 $ hg debugnodemap --dump-disk | f --sha256 --bytes=256 --hexdump --size
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22 size=122880, sha256=b961925120e1c9bc345c199b2cc442abc477029fdece37ef9d99cbe59c0558b7
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23 0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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24 0010: ff ff ff ff ff ff ff ff ff ff fa c2 ff ff ff ff |................|
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25 0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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26 0030: ff ff ff ff ff ff ed b3 ff ff ff ff ff ff ff ff |................|
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27 0040: ff ff ff ff ff ff ee 34 00 00 00 00 ff ff ff ff |.......4........|
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28 0050: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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29 0060: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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30 0070: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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31 0080: ff ff ff ff ff ff f8 50 ff ff ff ff ff ff ff ff |.......P........|
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32 0090: ff ff ff ff ff ff ff ff ff ff ec c7 ff ff ff ff |................|
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33 00a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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34 00b0: ff ff ff ff ff ff fa be ff ff f2 fc ff ff ff ff |................|
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35 00c0: ff ff ff ff ff ff ef ea ff ff ff ff ff ff f9 17 |................|
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36 00d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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37 00e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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38 00f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
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40 add a new commit
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41
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42 $ hg up
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43 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
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44 $ echo foo > foo
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45 $ hg add foo
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46 $ hg ci -m 'foo'
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47 $ f --size .hg/store/00changelog.n
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48 .hg/store/00changelog.n: size=18
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49 $ f --sha256 .hg/store/00changelog-*.nd --size
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50 .hg/store/00changelog-????????????????.nd: size=122880, sha256=bfafebd751c4f6d116a76a37a1dee2a251747affe7efbcc4f4842ccc746d4db9 (glob)