| author | Yuya Nishihara <yuya@tcha.org> |
| Sun, 26 Jun 2016 18:41:28 +0900 | |
| changeset 29935 | e34cd85dc5b1 |
| parent 29014 | f1ca249696ed |
| child 32940 | 75be14993fda |
| permissions | -rw-r--r-- |
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29014
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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#require no-pure |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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2 |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
3 |
A script to generate nasty diff worst-case scenarios: |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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4 |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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$ cat > s.py <<EOF |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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> import random |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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> for x in xrange(100000): |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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> if random.randint(0, 100) >= 50: |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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> x += 1 |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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> print hex(x) |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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> EOF |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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$ hg init a |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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$ cd a |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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Check in a big file: |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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$ python ../s.py > a |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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$ hg ci -qAm0 |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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Modify it: |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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$ python ../s.py > a |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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26 |
Time a check-in, should never take more than 10 seconds user time: |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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27 |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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28 |
$ hg ci --time -m1 |
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f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
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29 |
time: real .* secs .user [0-9][.].* sys .* (re) |