On Thursday, December 13, 2012, 10:26:33 PM, Michael Bayer wrote:

>> Almost nothing changed when we were upgrading SQLA except for Jython
>> which should be upgraded from 2.5.2 to 2.5.3 to fix SQLA import
>> problem. Other technology stack used:

> Also assuming Jython 2.5.3 + SQLA 0.7.2 is fine, right?

This becomes to my curiousity also, I find SQLA 0.7.2 with Jython
2.5.3 runs slower than with Jython 2.5.2. From overall microbench
testing taken from pypy, most issue tends comes from jython 2.5.3
dictionary which performs slower than jython 2.5.2:

https://bitbucket.org/pypy/pypy/src/e4568fc96f21/pypy/translator/microbench

        CPYTHON27       JY252           JY253
test_dict_instance_setnewattr_instance_dict_old_style
        0.291407189     0.46871312      1.303163004
test_dict_class_dict_getmethod_old_style
        0.412026777     0.518402187     1.122752555
test_dict_instance_setattr_instance_dict
        0.336120035     1.007072709     3.006027284
test_dict_instance_getattr_instance_dict_old_style
        0.246947478     0.275298092     0.288113081
test_dict_getitem
        0.369885287     1.531311077     3.212836794
test_dict_instance_setnewattr_instance_dict
        0.34283932      1.584638786     3.049607952
test_dict_class_dict_getmethod
        0.366906475     0.643861795     1.675214117
test_dict_instance_setattr_instance_dict_old_style
        0.28473827      0.450930618     1.239207258
test_dict_raw_range
        0.039259917     0.108438472     0.23650532
test_dict_setitem2
        0.381666537     1.648408104     3.86719574
test_dict_setitem1
        0.319665029     1.301376816     2.943969362
test_dict_creation_mode3
        0.139155867     0.77085957      1.787058169
test_dict_creation_mode2
        0.136866833     0.637561469     0.691933504
test_dict_creation_mode1
        0.150935604     0.42927071      0.961422087
test_dict_instance_getattr_instance_dict
        0.267798221     0.506267055     1.389867345

I will try to make a deeper observation on this.

-- 
Salam,

-Jaimy Azle

“+1 for stating fact: Perl is dead. Please 
    don't bring it back” – Matt Joiner
“-1 for spreading FUD about perl. It's 
    absolutely not dead.” – Daenyth
“+1 + -1 = 0, then, is perl a zombie?” – joaquin
    -- http://stackoverflow.com/questions/3384385/python-3-2-gil-good-bad

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