Mercurial > hg
annotate tests/test-cache-abuse.t @ 30706:2e4862646f02
repair: speed up stripping of many roots
repair.strip() expects a set of root revisions to strip. It then
builds the full set of descedants by walking the descandants of
each. It is rare that more than a few roots get passed in, but if that
happens, it will wastefully walk the changelog for each root. So let's
just walk it once.
I noticed this because the narrowhg extension was passing not only
roots, but all the commits to strip. When there were tens of thousands
of commits to strip, this resulted in quadratic behavior with that
extension.
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Wed, 04 Jan 2017 10:07:12 -0800 |
parents | b0b85d8695cb |
children | 1cc7c96cad75 |
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1 Enable obsolete markers |
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2 |
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3 $ cat >> $HGRCPATH << EOF |
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4 > [experimental] |
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5 > evolution=createmarkers |
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6 > [phases] |
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7 > publish=False |
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8 > EOF |
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9 |
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10 Build a repo with some cacheable bits: |
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11 |
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12 $ hg init a |
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13 $ cd a |
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14 |
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15 $ echo a > a |
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16 $ hg ci -qAm0 |
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17 $ hg tag t1 |
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18 $ hg book -i bk1 |
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19 |
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20 $ hg branch -q b2 |
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21 $ hg ci -Am1 |
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22 $ hg tag t2 |
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23 |
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24 $ echo dumb > dumb |
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25 $ hg ci -qAmdumb |
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26 $ hg debugobsolete b1174d11b69e63cb0c5726621a43c859f0858d7f |
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27 |
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28 $ hg phase -pr t1 |
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29 $ hg phase -fsr t2 |
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30 |
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31 Make a helper function to check cache damage invariants: |
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32 |
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33 - command output shouldn't change |
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34 - cache should be present after first use |
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35 - corruption/repair should be silent (no exceptions or warnings) |
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36 - cache should survive deletion, overwrite, and append |
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37 - unreadable / unwriteable caches should be ignored |
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38 - cache should be rebuilt after corruption |
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39 |
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40 $ damage() { |
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41 > CMD=$1 |
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42 > CACHE=.hg/cache/$2 |
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43 > CLEAN=$3 |
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44 > hg $CMD > before |
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45 > test -f $CACHE || echo "not present" |
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46 > echo bad > $CACHE |
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47 > test -z "$CLEAN" || $CLEAN |
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48 > hg $CMD > after |
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49 > diff -u before after || echo "*** overwrite corruption" |
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50 > echo corruption >> $CACHE |
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51 > test -z "$CLEAN" || $CLEAN |
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52 > hg $CMD > after |
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53 > diff -u before after || echo "*** append corruption" |
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54 > rm $CACHE |
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55 > mkdir $CACHE |
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56 > test -z "$CLEAN" || $CLEAN |
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57 > hg $CMD > after |
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58 > diff -u before after || echo "*** read-only corruption" |
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59 > test -d $CACHE || echo "*** directory clobbered" |
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60 > rmdir $CACHE |
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61 > test -z "$CLEAN" || $CLEAN |
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62 > hg $CMD > after |
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63 > diff -u before after || echo "*** missing corruption" |
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64 > test -f $CACHE || echo "not rebuilt" |
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65 > } |
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66 |
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67 Beat up tags caches: |
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68 |
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69 $ damage "tags --hidden" tags2 |
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70 $ damage tags tags2-visible |
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71 $ damage "tag -f t3" hgtagsfnodes1 |
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72 |
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73 Beat up hidden cache: |
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74 |
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75 $ damage log hidden |
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76 |
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77 Beat up branch caches: |
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78 |
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79 $ damage branches branch2-base "rm .hg/cache/branch2-[vs]*" |
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80 $ damage branches branch2-served "rm .hg/cache/branch2-[bv]*" |
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81 $ damage branches branch2-visible |
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82 $ damage "log -r branch(.)" rbc-names-v1 |
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83 $ damage "log -r branch(default)" rbc-names-v1 |
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84 $ damage "log -r branch(b2)" rbc-revs-v1 |
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85 |
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86 We currently can't detect an rbc cache with unknown names: |
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87 |
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88 $ damage "log -qr branch(b2)" rbc-names-v1 |
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89 --- before * (glob) |
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90 +++ after * (glob) |
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91 @@ -1,8 +?,0 @@ (glob) |
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92 -2:5fb7d38b9dc4 |
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93 -3:60b597ffdafa |
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94 -4:b1174d11b69e |
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95 -5:6354685872c0 |
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96 -6:5ebc725f1bef |
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97 -7:7b76eec2f273 |
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98 -8:ef3428d9d644 |
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99 -9:ba7a936bc03c |
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100 *** append corruption |