| author | Gregory Szorc <gregory.szorc@gmail.com> |
| Mon, 03 Jul 2017 21:10:48 -0700 | |
| changeset 33208 | 9e7efe421395 |
| parent 32940 | 75be14993fda |
| child 33721 | 24849d53697d |
| 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 |
|
|
32940
75be14993fda
cleanup: use $PYTHON to run python in many more tests
Augie Fackler <augie@google.com>
parents:
29014
diff
changeset
|
19 |
$ $PYTHON ../s.py > a |
|
29014
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 |
|
|
32940
75be14993fda
cleanup: use $PYTHON to run python in many more tests
Augie Fackler <augie@google.com>
parents:
29014
diff
changeset
|
24 |
$ $PYTHON ../s.py > a |
|
29014
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) |