dasel-data-selector/benchmark/README.md

Benchmarks

These benchmarks are auto generated using ./benchmark/run.sh.

brew install hyperfine
pip install matplotlib
./benchmark/run.sh

I have put together what I believe to be equivalent commands in dasel/jq/yq.

If you have any feedback or wish to add new benchmarks please submit a PR.

Benchmarks

Root Object

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
dasel -f benchmark/data.json	14.8 ± 3.7	10.4	31.7	1.00
jq '.' benchmark/data.json	31.8 ± 4.4	25.7	40.0	2.15 ± 0.62
yq --yaml-output '.' benchmark/data.yaml	133.5 ± 6.3	123.1	157.0	9.03 ± 2.33

Top level property

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
dasel -f benchmark/data.json '.id'	11.6 ± 0.5	10.9	13.8	1.00
jq '.id' benchmark/data.json	27.0 ± 2.5	25.7	44.1	2.34 ± 0.23
yq --yaml-output '.id' benchmark/data.yaml	132.6 ± 5.3	122.0	152.1	11.47 ± 0.67

Nested property

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
dasel -f benchmark/data.json '.user.name.first'	11.5 ± 0.5	11.0	13.9	1.00
jq '.user.name.first' benchmark/data.json	26.5 ± 0.8	25.3	32.2	2.31 ± 0.12
yq --yaml-output '.user.name.first' benchmark/data.yaml	133.0 ± 4.1	125.8	145.1	11.58 ± 0.59

Array index

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
dasel -f benchmark/data.json '.favouriteNumbers.[1]'	11.3 ± 0.4	10.8	13.8	1.00
jq '.favouriteNumbers[1]' benchmark/data.json	26.8 ± 1.8	25.5	35.5	2.37 ± 0.18
yq --yaml-output '.favouriteNumbers[1]' benchmark/data.yaml	133.8 ± 5.2	125.5	156.0	11.85 ± 0.66

Append to array of strings

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
dasel put string -f benchmark/data.json -o - '.favouriteColours.[]' blue	11.5 ± 0.3	10.6	12.7	1.00
jq '.favouriteColours += ["blue"]' benchmark/data.json	26.9 ± 1.6	25.7	40.1	2.33 ± 0.16
yq --yaml-output '.favouriteColours += ["blue"]' benchmark/data.yaml	137.8 ± 11.0	122.0	184.2	11.98 ± 1.02

Update a string value

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
dasel put string -f benchmark/data.json -o - '.favouriteColours.[0]' blue	11.9 ± 0.8	10.9	16.4	1.00
jq '.favouriteColours[0] = "blue"' benchmark/data.json	27.4 ± 2.2	25.8	37.0	2.31 ± 0.24
yq --yaml-output '.favouriteColours[0] = "blue"' benchmark/data.yaml	133.9 ± 4.2	126.2	148.2	11.30 ± 0.82

Overwrite an object

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
dasel put object -f benchmark/data.json -o - -t string -t string '.user.name' first=Frank last=Jones	11.5 ± 0.7	10.5	13.9	1.00
jq '.user.name = {"first":"Frank","last":"Jones"}' benchmark/data.json	27.4 ± 3.4	25.2	42.0	2.39 ± 0.33
yq --yaml-output '.user.name = {"first":"Frank","last":"Jones"}' benchmark/data.yaml	133.2 ± 3.9	122.7	144.8	11.60 ± 0.76

List keys of an array

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
dasel -f benchmark/data.json -m '.-'	11.7 ± 0.7	10.9	16.2	1.00
jq 'keys[]' benchmark/data.json	26.8 ± 1.2	25.4	32.8	2.29 ± 0.17
yq --yaml-output 'keys[]' benchmark/data.yaml	133.6 ± 4.9	124.6	155.8	11.45 ± 0.81

Delete property

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
dasel delete -f benchmark/data.json -o - '.id'	11.9 ± 0.8	11.0	15.6	1.00
jq 'del(.id)' benchmark/data.json	26.7 ± 1.1	25.5	34.0	2.24 ± 0.17
yq --yaml-output 'del(.id)' benchmark/data.yaml	134.6 ± 4.5	124.7	155.1	11.29 ± 0.84