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annotate tests/test-grep @ 2577:fa76c5d609c9

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bdiff: improve worst case behavior by 100x. on 5.8MB (244.000 lines) text file with similar lines, hash before this change made diff against empty file take 75 seconds. this change improves performance to 0.6 seconds. result is that clone of smallish repo (137MB) with some files like this takes 1 minute instead of 10 minutes. common case of diff is 10% slower now, probably because of worse cache locality. but diff does not affect overall performance in common case (less than 1% of runtime is in diff when it is working ok), so this tradeoff looks good.
author Vadim Gelfer <vadim.gelfer@gmail.com>
date Fri, 07 Jul 2006 15:02:55 -0700
parents 5e47e42b14ba
children 81f351c5264d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/bin/sh
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2
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3 mkdir t
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4 cd t
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5 hg init
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6 echo import > port
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7 hg add port
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8 hg commit -m 0 -u spam -d '0 0'
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9 echo export >> port
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10 hg commit -m 1 -u eggs -d '1 0'
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11 echo export > port
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12 echo vaportight >> port
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13 echo 'import/export' >> port
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14 hg commit -m 2 -u spam -d '2 0'
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15 echo 'import/export' >> port
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16 hg commit -m 3 -u eggs -d '3 0'
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5e47e42b14ba use posix compliant option for head
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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17 head -n 3 port > port1
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18 mv port1 port
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19 hg commit -m 4 -u spam -d '4 0'
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20 hg grep port port
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8787d2d5fc7d Added FIXME output to test-grep so the test will not fail.
Thomas Arendsen Hein <thomas@intevation.de>
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21 echo 'FIXME: history is wrong here'
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ccb6201e3f28 Change grep -e to grep --all
mpm@selenic.com
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22 hg grep --all -nu port port
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23 hg grep import port