Silly benchmark to see the speed / accuracy tradeoff for various ways of computing an encoded json document sizes.
Main code is in couch_ebench.erl.
There are a few json encoders used as well as a 2 custom modules. One module tries to match the encoded size of jiffy:encode, the other doesn't and is trying to be on the conservaitve side, that is, it reports a smaller sizse usually but is faster.
To fetch deps & build:
$ ./build.sh
To run:
$ ./run.sh [Inputsize1] [Inputsize2] ...
Where Inputsize is the size of the generated inputs (how deep to make the
nested objects, how long to make the string, how many copies of the json
documents to use, etc.
./build.sh && ./run.sh 10 1000 10000
==> jiffy (get-deps)
==> jsx (get-deps)
==> jsone (get-deps)
==> couch_ebench (get-deps)
==> jiffy (compile)
==> jsx (compile)
==> jsone (compile)
==> couch_ebench (compile)
Generating inputs...
Running benchmark 4 encoders x 42 tests. Input size(s): [10,1000,10000]
Finished running benchmark.
Enc. | Input size | Input type | USec | Bytes
------+------------+--------------+------------+----------
jiffy
| 10 | file_1 | 170.7 | 13031
| 10 | float_17d | 3.2 | 201
| 10 | float_1d_arr | 2.8 | 41
| 10 | float_large_ | 2.9 | 71
| 10 | int_large_ar | 15.7 | 1031
| 10 | int_small_ar | 2.4 | 31
| 10 | nested_arr | 1.7 | 22
| 10 | nested_obj | 2.1 | 69
| 10 | str_basic | 0.6 | 12
| 10 | str_cent | 0.5 | 22
| 10 | str_ctr1 | 0.6 | 62
| 10 | str_escn | 0.5 | 22
| 10 | str_euro | 0.8 | 32
| 10 | str_hwair | 0.8 | 42
| 1000 | file_1 | 18171.8 | 1303001
| 1000 | float_17d | 280.3 | 20001
| 1000 | float_1d_arr | 262.5 | 4001
| 1000 | float_large_ | 233.9 | 7001
| 1000 | int_large_ar | 1864.8 | 103001
| 1000 | int_small_ar | 196.1 | 3001
| 1000 | nested_arr | 133.1 | 2002
| 1000 | nested_obj | 175.8 | 6009
| 1000 | str_basic | 2.9 | 1002
| 1000 | str_cent | 10.9 | 2002
| 1000 | str_ctr1 | 8.7 | 6002
| 1000 | str_escn | 6.0 | 2002
| 1000 | str_euro | 16.0 | 3002
| 1000 | str_hwair | 28.8 | 4002
| 10000 | file_1 | 185333.1 | 13030001
| 10000 | float_17d | 3046.8 | 200001
| 10000 | float_1d_arr | 2168.3 | 40001
| 10000 | float_large_ | 2182.0 | 70001
| 10000 | int_large_ar | 27650.3 | 1030001
| 10000 | int_small_ar | 2384.8 | 30001
| 10000 | nested_arr | 1259.9 | 20002
| 10000 | nested_obj | 1832.3 | 60009
| 10000 | str_basic | 29.1 | 10002
| 10000 | str_cent | 97.6 | 20002
| 10000 | str_ctr1 | 62.6 | 60002
| 10000 | str_escn | 43.7 | 20002
| 10000 | str_euro | 140.1 | 30002
| 10000 | str_hwair | 172.2 | 40002
erlfast
| 10 | file_1 | 43.7 | 13011
| 10 | float_17d | 2.2 | 41
| 10 | float_1d_arr | 1.8 | 41
| 10 | float_large_ | 14.5 | 221
| 10 | int_large_ar | 1.4 | 1031
| 10 | int_small_ar | 0.4 | 31
| 10 | nested_arr | 0.4 | 22
| 10 | nested_obj | 0.8 | 69
| 10 | str_basic | 0.0 | 12
| 10 | str_cent | 0.0 | 22
| 10 | str_ctr1 | 0.0 | 12
| 10 | str_escn | 0.0 | 12
| 10 | str_euro | 0.0 | 32
| 10 | str_hwair | 0.0 | 42
| 1000 | file_1 | 4403.1 | 1301001
| 1000 | float_17d | 96.4 | 4001
| 1000 | float_1d_arr | 104.8 | 4001
| 1000 | float_large_ | 1355.6 | 22001
| 1000 | int_large_ar | 172.1 | 103001
| 1000 | int_small_ar | 29.9 | 3001
| 1000 | nested_arr | 34.8 | 2002
| 1000 | nested_obj | 64.6 | 6009
| 1000 | str_basic | 0.0 | 1002
| 1000 | str_cent | 0.0 | 2002
| 1000 | str_ctr1 | 0.0 | 1002
| 1000 | str_escn | 0.0 | 1002
| 1000 | str_euro | 0.0 | 3002
| 1000 | str_hwair | 0.0 | 4002
| 10000 | file_1 | 43863.5 | 13010001
| 10000 | float_17d | 956.9 | 40001
| 10000 | float_1d_arr | 949.8 | 40001
| 10000 | float_large_ | 13652.1 | 220001
| 10000 | int_large_ar | 1421.1 | 1030001
| 10000 | int_small_ar | 360.9 | 30001
| 10000 | nested_arr | 358.8 | 20002
| 10000 | nested_obj | 606.8 | 60009
| 10000 | str_basic | 0.0 | 10002
| 10000 | str_cent | 0.0 | 20002
| 10000 | str_ctr1 | 0.0 | 10002
| 10000 | str_escn | 0.1 | 10002
| 10000 | str_euro | 0.1 | 30002
| 10000 | str_hwair | 0.0 | 40002
erlexact
| 10 | file_1 | 346.7 | 13031
| 10 | float_17d | 8.0 | 201
| 10 | float_1d_arr | 7.6 | 41
| 10 | float_large_ | 8.2 | 71
| 10 | int_large_ar | 0.9 | 1031
| 10 | int_small_ar | 1.4 | 31
| 10 | nested_arr | 0.5 | 22
| 10 | nested_obj | 1.4 | 69
| 10 | str_basic | 0.3 | 12
| 10 | str_cent | 0.5 | 22
| 10 | str_ctr1 | 0.3 | 62
| 10 | str_escn | 0.3 | 22
| 10 | str_euro | 0.4 | 32
| 10 | str_hwair | 0.3 | 42
| 1000 | file_1 | 35026.9 | 1303001
| 1000 | float_17d | 919.0 | 20001
| 1000 | float_1d_arr | 821.8 | 4001
| 1000 | float_large_ | 809.0 | 7001
| 1000 | int_large_ar | 99.8 | 103001
| 1000 | int_small_ar | 54.6 | 3001
| 1000 | nested_arr | 38.2 | 2002
| 1000 | nested_obj | 127.4 | 6009
| 1000 | str_basic | 26.0 | 1002
| 1000 | str_cent | 43.8 | 2002
| 1000 | str_ctr1 | 21.1 | 6002
| 1000 | str_escn | 24.1 | 2002
| 1000 | str_euro | 36.1 | 3002
| 1000 | str_hwair | 28.6 | 4002
| 10000 | file_1 | 363273.3 | 13030001
| 10000 | float_17d | 8589.2 | 200001
| 10000 | float_1d_arr | 8709.6 | 40001
| 10000 | float_large_ | 8299.4 | 70001
| 10000 | int_large_ar | 949.6 | 1030001
| 10000 | int_small_ar | 513.5 | 30001
| 10000 | nested_arr | 414.5 | 20002
| 10000 | nested_obj | 1216.9 | 60009
| 10000 | str_basic | 355.7 | 10002
| 10000 | str_cent | 615.7 | 20002
| 10000 | str_ctr1 | 261.1 | 60002
| 10000 | str_escn | 253.7 | 20002
| 10000 | str_euro | 322.0 | 30002
| 10000 | str_hwair | 332.6 | 40002
jsone
| 10 | file_1 | 699.0 | 13411
| 10 | float_17d | 11.2 | 271
| 10 | float_1d_arr | 9.7 | 271
| 10 | float_large_ | 17.8 | 281
| 10 | int_large_ar | 11.0 | 1031
| 10 | int_small_ar | 3.1 | 31
| 10 | nested_arr | 1.8 | 22
| 10 | nested_obj | 4.5 | 69
| 10 | str_basic | 0.8 | 12
| 10 | str_cent | 1.5 | 62
| 10 | str_ctr1 | 1.0 | 62
| 10 | str_escn | 0.5 | 22
| 10 | str_euro | 1.5 | 62
| 10 | str_hwair | 2.7 | 122
| 1000 | file_1 | 93229.8 | 1341001
| 1000 | float_17d | 940.6 | 27001
| 1000 | float_1d_arr | 974.1 | 27001
| 1000 | float_large_ | 1857.5 | 28001
| 1000 | int_large_ar | 987.7 | 103001
| 1000 | int_small_ar | 137.0 | 3001
| 1000 | nested_arr | 112.4 | 2002
| 1000 | nested_obj | 295.7 | 6009
| 1000 | str_basic | 50.7 | 1002
| 1000 | str_cent | 111.1 | 6002
| 1000 | str_ctr1 | 70.3 | 6002
| 1000 | str_escn | 32.9 | 2002
| 1000 | str_euro | 113.2 | 6002
| 1000 | str_hwair | 302.7 | 12002
| 10000 | file_1 | 972721.8 | 13410001
| 10000 | float_17d | 10365.8 | 270001
| 10000 | float_1d_arr | 9820.9 | 270001
| 10000 | float_large_ | 18326.3 | 280001
| 10000 | int_large_ar | 12271.9 | 1030001
| 10000 | int_small_ar | 1423.4 | 30001
| 10000 | nested_arr | 1395.8 | 20002
| 10000 | nested_obj | 3795.6 | 60009
| 10000 | str_basic | 636.1 | 10002
| 10000 | str_cent | 1077.9 | 60002
| 10000 | str_ctr1 | 666.1 | 60002
| 10000 | str_escn | 304.4 | 20002
| 10000 | str_euro | 1130.7 | 60002
| 10000 | str_hwair | 2607.8 | 120002