[cl-json-devel] cl-json 0.4

[Henrik Hjelte]

Thanks Boris and Hans for all this, I have just started to look at the
new patches and it looks very impressive. I have pushed all pathes to
the darcs repo, and added a tag "Pre-0.4-bundle" before and a tag
"0.4-bundle" after.

One thing you might want to know before upgrading, when comparing the
performance testcases the new version seems a bit slower on my sbcl
(see below).

I'll look more into this.

Best wishes,
Henrik Hjelte


SBCL 1.0.21.34

Encoder:

Pre-0.4-bundle:
CL-USER> (5am:run! 'json-test::encoder-performance)
Encoding 652 varying chars  from memory 2000 times.
Evaluation took:
  0.160 seconds of real time
  0.152009 seconds of total run time (0.144009 user, 0.008000 system)
  [ Run times consist of 0.008 seconds GC time, and 0.145 seconds non-GC time. ]
  95.00% CPU
  346,830,716 processor cycles
  14,245,920 bytes consed

0.4-bundle:

CL-USER> (5am:run! 'json-test::encoder-performance)
Encoding 652 varying chars  from memory 2000 times.
Evaluation took:
  0.143 seconds of real time
  0.144009 seconds of total run time (0.136008 user, 0.008001 system)
  [ Run times consist of 0.020 seconds GC time, and 0.125 seconds non-GC time. ]
  100.70% CPU
  309,824,182 processor cycles
  26,578,824 bytes consed

Decoder:

Pre-0.4-bundle:
CL-USER> (5am:run! 'json-test::decoder-performance)
Decoding 1387 varying chars from memory 1000 times.
Evaluation took:
  0.667 seconds of real time
  0.652041 seconds of total run time (0.632039 user, 0.020002 system)
  [ Run times consist of 0.024 seconds GC time, and 0.629 seconds non-GC time. ]
  97.75% CPU
  1,440,436,365 processor cycles
  80,807,408 bytes consed

0.4-bundle:
CL-USER> (5am:run! 'json-test::decoder-performance)
Decoding 1387 varying chars from memory 1000 times.
Evaluation took:
  2.139 seconds of real time
  2.108132 seconds of total run time (1.628102 user, 0.480030 system)
  [ Run times consist of 0.032 seconds GC time, and 2.077 seconds non-GC time. ]
  98.55% CPU
  4,624,819,100 processor cycles
  105,295,912 bytes consed