Mercurial > hg
view tests/blackbox-readonly-dispatch.py @ 29001:923fa9e06ea0 stable
revset: make sort() do dumb multi-pass sorting for multiple keys (issue5218)
Our invert() function was too clever to not take length into account. I could
fix the problem by appending '\xff' as a terminator (opposite to '\0'), but
it turned out to be slower than simple multi-pass sorting.
New implementation is pretty straightforward, which just calls sort() from the
last key. We can do that since Python sort() is guaranteed to be stable. It
doesn't sound nice to call sort() multiple times, but actually it is faster.
That's probably because we have fewer Python codes in hot loop, and can avoid
heavy string and list manipulation.
revset #0: sort(0:10000, 'branch')
0) 0.412753
1) 0.393254
revset #1: sort(0:10000, '-branch')
0) 0.455377
1) 0.389191 85%
revset #2: sort(0:10000, 'date')
0) 0.408082
1) 0.376332 92%
revset #3: sort(0:10000, '-date')
0) 0.406910
1) 0.380498 93%
revset #4: sort(0:10000, 'desc branch user date rev')
0) 0.542996
1) 0.486397 89%
revset #5: sort(0:10000, '-desc -branch -user -date -rev')
0) 0.965032
1) 0.518426 53%
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Sat, 23 Apr 2016 16:09:30 +0900 |
parents | 0767c2f624c6 |
children | 853bf7d90804 |
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from __future__ import absolute_import, print_function import os from mercurial import ( dispatch, ) def testdispatch(cmd): """Simple wrapper around dispatch.dispatch() Prints command and result value, but does not handle quoting. """ print("running: %s" % (cmd,)) req = dispatch.request(cmd.split()) result = dispatch.dispatch(req) print("result: %r" % (result,)) # create file 'foo', add and commit f = open('foo', 'wb') f.write('foo\n') f.close() testdispatch("add foo") testdispatch("commit -m commit1 -d 2000-01-01 foo") # append to file 'foo' and commit f = open('foo', 'ab') f.write('bar\n') f.close() # remove blackbox.log directory (proxy for readonly log file) os.rmdir(".hg/blackbox.log") # replace it with the real blackbox.log file os.rename(".hg/blackbox.log-", ".hg/blackbox.log") testdispatch("commit -m commit2 -d 2000-01-02 foo") # check 88803a69b24 (fancyopts modified command table) testdispatch("log -r 0") testdispatch("log -r tip")