author | Yuya Nishihara <yuya@tcha.org> |
Sat, 01 Oct 2016 20:11:48 +0900 | |
changeset 30043 | 49d5434d68fb |
parent 29014 | f1ca249696ed |
child 32940 | 75be14993fda |
permissions | -rw-r--r-- |
29014
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
1 |
#require no-pure |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
2 |
|
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: |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
4 |
|
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
5 |
$ cat > s.py <<EOF |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
6 |
> import random |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
7 |
> for x in xrange(100000): |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
8 |
|
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
9 |
> if random.randint(0, 100) >= 50: |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
10 |
> x += 1 |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
11 |
> print hex(x) |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
12 |
> EOF |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
13 |
|
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
14 |
$ hg init a |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
15 |
$ cd a |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
16 |
|
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
17 |
Check in a big file: |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
18 |
|
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
19 |
$ python ../s.py > a |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
20 |
$ hg ci -qAm0 |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
21 |
|
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
22 |
Modify it: |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
23 |
|
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
24 |
$ python ../s.py > a |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
25 |
|
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
26 |
Time a check-in, should never take more than 10 seconds user time: |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
27 |
|
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
28 |
$ hg ci --time -m1 |
f1ca249696ed
bdiff: balance recursion to avoid quadratic behavior (issue4704)
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
29 |
time: real .* secs .user [0-9][.].* sys .* (re) |