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Optimize lexer implementation #448

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merged 6 commits into from
Dec 21, 2024
Merged

Optimize lexer implementation #448

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9afe145
do not create a temporal, redundant lexical_token object
fktn-k Dec 21, 2024
f7141af
search plain scalar contents for flow indicators only within a flow c…
fktn-k Dec 21, 2024
650fc72
modified validation of scalar contents
fktn-k Dec 21, 2024
7320c37
reduced redundant calls in lexer
fktn-k Dec 21, 2024
44daafd
updated benchmark results
fktn-k Dec 21, 2024
3794bd4
fixed a clang-tidy error
fktn-k Dec 21, 2024
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36 changes: 18 additions & 18 deletions README.md
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Expand Up @@ -151,34 +151,34 @@ The following tables are created from the benchmarking results in the following

| Benchmark | processed bytes per second (Release) |
| ---------------------------------- | ------------------------------------ |
| fkYAML | 55.1393Mi/s |
| libfyaml | 34.7645Mi/s |
| rapidyaml<br>(with mutable buff) | 19.6806Gi/s |
| rapidyaml<br>(with immutable buff) | 140.24Mi/s |
| yaml-cpp | 8.75716Mi/s |
| fkYAML | 60.1886Mi/s |
| libfyaml | 34.9689Mi/s |
| rapidyaml<br>(with mutable buff) | 19.4415Gi/s |
| rapidyaml<br>(with immutable buff) | 139.381Mi/s |
| yaml-cpp | 8.8139Mi/s |

### Parsing [citm_catalog.json](https://github.com/fktn-k/fkYAML/blob/develop/tool/benchmark/cases/citm_catalog.json)

| Benchmark | processed bytes per second (Release) |
| ---------------------------------- | ------------------------------------ |
| fkYAML | 82.9931Mi/s |
| libfyaml | 52.4308Mi/s |
| rapidyaml<br>(with mutable buff) | 30.339Gi/s |
| rapidyaml<br>(with immutable buff) | 145.672Mi/s |
| yaml-cpp | 14.238Mi/s |
| fkYAML | 91.1523Mi/s |
| libfyaml | 51.8156Mi/s |
| rapidyaml<br>(with mutable buff) | 29.7284Gi/s |
| rapidyaml<br>(with immutable buff) | 140.764Mi/s |
| yaml-cpp | 14.8521Mi/s |

### Parsing [citm_catalog.yml](https://github.com/fktn-k/fkYAML/blob/develop/tool/benchmark/cases/citm_catalog.yml)

| Benchmark | processed bytes per second (Release) |
| ---------------------------------- | ------------------------------------ |
| fkYAML | 35.152Mi/s |
| libfyaml | 23.0845Mi/s |
| rapidyaml<br>(with mutable buff) | 31.117Gi/s |
| rapidyaml<br>(with immutable buff) | 66.3046Mi/s |
| yaml-cpp | 6.11709Mi/s |

Although [rapidyaml](https://github.com/biojppm/rapidyaml) is about 2x faster with immutable buffer and far faster with mutable buff than fkYAML as it focuses on high performance, fkYAML is in general 50% faster than [libfyaml](https://github.com/pantoniou/libfyaml) and also about 6x faster than [yaml-cpp](https://github.com/jbeder/yaml-cpp).
Note that, since fkYAML deserializes scalars into native booleans or integers during the parsing, the performance could be more faster in some use cases since there is no need for string manipulations.
| fkYAML | 36.0492Mi/s |
| libfyaml | 21.547Mi/s |
| rapidyaml<br>(with mutable buff) | 22.6904Gi/s |
| rapidyaml<br>(with immutable buff) | 64.3972Mi/s |
| yaml-cpp | 6.2337Mi/s |

Although [rapidyaml](https://github.com/biojppm/rapidyaml) is about 2x faster with immutable buffers and far faster with mutable buffers than fkYAML as it focuses on high performance, fkYAML is in general 70% faster than [libfyaml](https://github.com/pantoniou/libfyaml) and also about 6x faster than [yaml-cpp](https://github.com/jbeder/yaml-cpp).
Note that, since fkYAML deserializes scalars into native booleans or integers during the parsing, the performance could be more faster in some use cases since there is no need for string manipulations upon data queries.

## License

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