Hi,
Just a bunch of simple statistics between the current py3k branch and the trunk.
Compilation was done with all default values (bare "./configure") on a Linux
machine with gcc, in non-debug mode.
The fact that 3.0 is measurably smaller than 2.6 (for various meanings of the
"size" metric) is not a surprise in itself, but still interesting to verify and
quantify.
Compilation time ("time make")
------------------------------
* 2.6:
153.68user 9.06system 2:52.91elapsed 94%CPU
* 3.0:
141.31user 7.99system 2:41.93elapsed 92%CPU
Object code size ("size python")
--------------------------------
The 3.0 executable has ~70KB less object code (for a total of ~1MB object code).
* 2.6:
text data bss dec hex filename
1177856 170508 37428 1385792 152540 python
* 3.0:
text data bss dec hex filename
1103421 164000 93584 1361005 14c46d python
Executable size ("strip python && ls -sk python")
-------------------------------------------------
Here is the size of the executable in kilobytes. Dependent libraries ("ldd
python") are the same for both.
* 2.6:
1328 python*
* 3.0:
1252 python*
Runtime size of the interpreter
-------------------------------
I launch the interactive interpreter and then launch a pystone run (by typing
"from test import pystone; pystone.main()" at the prompt). Launching pystone is
just an easy way of "doing something" from the command-line, to ensure that the
necessary basic stuff is loaded and initialized. At the end of the pystone run,
I run "ps aux" and note the memory consumption values.
It is not obvious to interpret these numbers, and more meaningful workloads
would probably show 3.0 taking more memory than 2.6, due to strings being
unicode by default.
* 2.6 ("./python -E"):
VSZ=6292, RSS=4328
* 3.0 ("./python -E"):
VSZ=6876, RSS=4132
* 2.6 ("./python -E -OO"):
VSZ=6240, RSS=4252
* 3.0 ("./python -E -OO"):
VSZ=6712, RSS=3948
(the numbers are collected after a second run, so there is no bytecode
compilation phase)
Number of code lines ("make distclean && sloccount .")
------------------------------------------------------
3.0 is smaller by 25% (a massive 180000 lines of code have been removed, 70000
of which in the Mac directory which has become almost empty).
* 2.6:
SLOC Directory SLOC-by-Language (Sorted)
294958 Lib python=294883,sh=75
204473 Modules ansic=190682,asm=9565,sh=3927,python=299
91268 Mac ansic=77313,python=13090,objc=756,sh=109
56952 Objects ansic=56952
36698 Python ansic=36698
29763 Tools python=29660,ansic=67,sh=36
18351 Demo python=17987,ansic=360,sh=4
8927 PC ansic=8320,python=607
5935 Include ansic=5935
5782 Parser ansic=3926,python=1856
3802 Misc lisp=2933,python=595,sh=175,ansic=99
2729 Doc python=1947,ansic=782
2071 RISCOS ansic=2071
1408 top_dir python=1239,sh=169
351 PCbuild python=281,ansic=70
0 Grammar (none)
Totals grouped by language (dominant language first):
ansic: 383275 (50.20%)
python: 362444 (47.47%)
asm: 9565 (1.25%)
sh: 4495 (0.59%)
lisp: 2933 (0.38%)
objc: 756 (0.10%)
* 3.0:
SLOC Directory SLOC-by-Language (Sorted)
241350 Lib python=241305,sh=45
179281 Modules ansic=165789,asm=9565,sh=3927
50523 Objects ansic=50523
36196 Python ansic=36196
26791 Tools python=26688,ansic=67,sh=36
18269 Demo python=17905,ansic=360,sh=4
8923 PC ansic=8316,python=607
5747 Parser ansic=3881,python=1866
5623 Include ansic=5623
3517 Misc lisp=2948,python=293,sh=177,ansic=99
2728 Doc python=1946,ansic=782
2368 Mac python=1495,objc=756,sh=109,ansic=8
1351 top_dir python=1112,sh=239
351 PCbuild python=281,ansic=70
0 Grammar (none)
Totals grouped by language (dominant language first):
python: 293498 (50.34%)
ansic: 271714 (46.60%)
asm: 9565 (1.64%)
sh: 4537 (0.78%)
lisp: 2948 (0.51%)
objc: 756 (0.13%)
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