[pypy-issue] [issue868] Pypy json.dumps >100% slower than CPython 2.7, simplejson

[Brian Kearns]

Brian Kearns <bdkearns at gmail.com> added the comment:

Took a look at this again. We do better, but still 'break down' on the HUGE 
case.

$ python2.7 bench.py 
Test case: EMPTY
	 loops per run 308000
	Best performances: 3.25 usec/loop
Test case: SIMPLE
	 loops per run 184000
	Best performances: 5.49 usec/loop
Test case: NESTED
	 loops per run 98000
	Best performances: 10.25 usec/loop
Test case: HUGE
	 loops per run 1000
	Best performances: 2873.16 usec/loop

$ ../../pypy/pypy-c bench.py 
Test case: EMPTY
	 loops per run 1451320
	Best performances: 0.03 usec/loop
Test case: SIMPLE
	 loops per run 156740
	Best performances: 2.20 usec/loop
Test case: NESTED
	 loops per run 93110
	Best performances: 10.18 usec/loop
Test case: HUGE
	 loops per run 180
	Best performances: 57414.41 usec/loop

----------
nosy: +bdk

________________________________________
PyPy bug tracker <tracker at bugs.pypy.org>
<https://bugs.pypy.org/issue868>
________________________________________