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34820 Commits

Author SHA1 Message Date
Steve Holden 7db3d38d41 Add Richard Tew to developers 2006-05-26 22:17:54 +00:00
Tim Peters 19bfd4209d Whitespace normalization. 2006-05-26 21:51:13 +00:00
Tim Peters 8d39dc11c2 Record Iceland sprint attendees. 2006-05-26 20:56:56 +00:00
Bob Ippolito aa70a17e13 enable all of the struct tests, use ssize_t, fix some whitespace 2006-05-26 20:25:23 +00:00
Andrew Dalke 5132407868 Added limits to the replace code so it does not count all of the matching 
patterns in a string, only the number needed by the max limit.
 2006-05-26 20:25:22 +00:00
Georg Brandl e4e023c4d3 Simplify calling. 2006-05-26 20:22:50 +00:00
Georg Brandl a89dbec257 Patch #1492218: document None being a constant. 2006-05-26 20:14:47 +00:00
Georg Brandl 7784f12d74 Replace Py_BuildValue("OO") by PyTuple_Pack. 2006-05-26 20:04:44 +00:00
Andrew M. Kuchling 07bbfc6a51 Comment typo 2006-05-26 19:51:10 +00:00
Fredrik Lundh e6e43c867d needforspeed: stringlib refactoring: use stringlib/find for string find 2006-05-26 19:48:07 +00:00
Thomas Heller cc7570fd90 Write more docs. 2006-05-26 19:43:45 +00:00
Fredrik Lundh c816281304 needforspeed: use a macro to fix slice indexes 2006-05-26 19:33:03 +00:00
Fredrik Lundh ce4eccb0c4 needforspeed: stringlib refactoring: use stringlib/find for unicode 
find
 2006-05-26 19:29:05 +00:00
Fredrik Lundh 58b5e84d52 needforspeed: stringlib refactoring, continued. added count and 
find helpers; updated unicodeobject to use stringlib_count
 2006-05-26 19:24:53 +00:00
Fredrik Lundh a26de2a80f added rpartition method to UserString class 2006-05-26 19:23:21 +00:00
Georg Brandl e001816dff Exception isn't the root of all exception classes anymore. 2006-05-26 19:04:47 +00:00
Brett Cannon 04f031d202 Change C spacing to 4 spaces by default to match PEP 7 for new C files. 2006-05-26 19:04:47 +00:00
Andrew Dalke c5da53ba78 substring split now uses /F's fast string matching algorithm. 
(If compiled without FAST search support, changed the pre-memcmp test
   to check the last character as well as the first.  This gave a 25%
   speedup for my test case.)

Rewrote the split algorithms so they stop when maxsplit gets to 0.
Previously they did a string match first then checked if the maxsplit
was reached.  The new way prevents a needless string search.
 2006-05-26 19:02:09 +00:00
Andrew M. Kuchling afe6598732 Add rpartition() and path caching 2006-05-26 18:41:18 +00:00
Steve Holden d05e546850 Revert tests to MAL's original round sizes to retiain comparability 
from long ago and far away. Stop calling this pybench 1.4 because it
isn't. Remove the empty test, which was a bad idea.
 2006-05-26 18:26:21 +00:00
Fredrik Lundh 9c0e9c089c needspeed: rpartition documentation, tests, and a bug fixes. 
feel free to add more tests and improve the documentation.
 2006-05-26 18:24:15 +00:00
Fredrik Lundh b3167cbcd7 needforspeed: added rpartition implementation 2006-05-26 18:15:38 +00:00
Fredrik Lundh be9f219e40 removed unnecessary include 2006-05-26 18:05:34 +00:00
Georg Brandl f4ef11659c Need for speed: Patch #921466 : sys.path_importer_cache is now used to cache valid and 
invalid file paths for the built-in import machinery which leads to
  fewer open calls on startup.

  Also fix issue with PEP 302 style import hooks which lead to more open()
  calls than necessary.
 2006-05-26 18:03:31 +00:00
Thomas Heller 2d6c5a868a Reordered, and wrote more docs. 2006-05-26 17:47:40 +00:00
Steve Holden f845877767 Use minimum calibration time rather than avergae to avoid 
the illusion of negative run times. Halt with an error if
run times go below 10 ms, indicating that results will be
unreliable.
 2006-05-26 17:41:32 +00:00
Fredrik Lundh 3a65d87e8c needforspeed: remove remaining USE_FAST macros; if fastsearch was 
broken, someone would have noticed by now ;-)
 2006-05-26 17:31:41 +00:00
Fredrik Lundh c2032fb86a needforspeed: cleanup 2006-05-26 17:26:39 +00:00
Fredrik Lundh b947948c61 needforspeed: stringlib refactoring (in progress) 2006-05-26 17:22:38 +00:00
Thomas Heller 69bfaab304 Write some docs. 2006-05-26 17:18:33 +00:00
Fredrik Lundh a50d201bd9 needforspeed: stringlib refactoring (in progress) 2006-05-26 17:04:58 +00:00
Tim Peters 877ab9bc23 Add missing svn:eol-style property to text files. 2006-05-26 16:53:04 +00:00
Tim Peters 584c8d4588 Whitespace normalization. 2006-05-26 16:52:04 +00:00
Tim Peters 735ae484f0 Repair Windows compiler warnings about mixing 
signed and unsigned integral types in comparisons.
 2006-05-26 16:49:28 +00:00
Thomas Heller ada638bf91 For now, I gave up with automatic conversion of reST to Python-latex, 
so I'm writing this in latex now.

Skeleton for the ctypes reference.
 2006-05-26 16:42:44 +00:00
Fredrik Lundh 7c940d1d68 needforspeed: use Py_LOCAL on a few more locals in stringobject.c 2006-05-26 16:32:42 +00:00
Steve Holden 431a76314d Add -t option to allow easy test selection. 
Action verbose option correctly.
Tweak operation counts. Add empty and new instances tests.
Enable comparisons across different warp factors. Change version.
 2006-05-26 16:27:59 +00:00
Bob Ippolito 0cbf2c5785 fix signed/unsigned mismatch in struct 2006-05-26 16:23:28 +00:00
Andrew Dalke 725fe4089d Test for more edge strip cases; leading and trailing separator gets removed 
even with strip(..., 0)
 2006-05-26 16:22:52 +00:00
Andrew Dalke 02758d66ce Eeked out another 3% or so performance in split whitespace by cleaning up the algorithm. 2006-05-26 15:21:01 +00:00
Bob Ippolito 1d2b0e3f61 Enable PY_USE_INT_WHEN_POSSIBLE in struct 2006-05-26 14:29:35 +00:00
Bob Ippolito 685dda8b95 Fix _struct typo that broke some 64-bit platforms 2006-05-26 14:23:21 +00:00
Bob Ippolito ad647859f4 Fix distutils so that libffi will cross-compile between darwin/x86 and darwin/ppc 2006-05-26 14:07:23 +00:00
Andrew M. Kuchling c6f5c871b9 Typo fix 2006-05-26 14:04:19 +00:00
Andrew M. Kuchling 230c3e1bc0 Add buffer support for struct, socket 2006-05-26 14:03:41 +00:00
Tim Peters 02494764cb Explicitly close files. I'm trying to stop the frequent spurious test_tarfile 
failures on Windows buildbots, but it's hard to know how since the regrtest
failure output is useless here, and it never fails when a buildbot slave runs
test_tarfile the second time in verbose mode.
 2006-05-26 14:02:05 +00:00
Andrew Dalke 525eab3712 Changes to string.split/rsplit on whitespace to preallocate space in the 
results list.

Originally it allocated 0 items and used the list growth during append.  Now
it preallocates 12 items so the first few appends don't need list reallocs.

("Here are some words ."*2).split(None, 1) is 7% faster
("Here are some words ."*2).split() is is 15% faster

  (Your milage may vary, see dealership for details.)

File parsing like this

    for line in f:
        count += len(line.split())

is also about 15% faster.  There is a slowdown of about 3% for large
strings because of the additional overhead of checking if the append is
to a preallocated region of the list or not.  This will be the rare case.
It could be improved with special case code but we decided it was not
useful enough.

There is a cost of 12*sizeof(PyObject *) bytes per list.  For the normal
case of file parsing this is not a problem because of the lists have
a short lifetime.  We have not come up with cases where this is a problem
in real life.

I chose 12 because human text averages about 11 words per line in books,
one of my data sets averages 6.2 words with a final peak at 11 words per
line, and I work with a tab delimited data set with 8 tabs per line (or
9 words per line).  12 encompasses all of these.

Also changed the last rstrip code to append then reverse, rather than
doing insert(0).  The strip() and rstrip() times are now comparable.
 2006-05-26 14:00:45 +00:00
Tim Peters b1f3251ceb Use open() to open files (was using file()). 2006-05-26 13:39:17 +00:00
Bob Ippolito e27337b5d0 fix #1229380 No struct.pack exception for some out of range integers 2006-05-26 13:15:44 +00:00
Andrew Dalke 669fa188b1 Added more rstrip tests, including for prealloc'ed arrays 2006-05-26 13:05:55 +00:00