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Daniel Lemire 2020-11-06 10:00:13 -05:00 committed by GitHub
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@ -80,12 +80,14 @@ This library is used by [Apache Arrow](https://github.com/apache/arrow/pull/8494
It can parse random floating-point numbers at a speed of 1 GB/s on some systems. We find that it is often twice as fast as the best available competitor, and many times faster than many standard-library implementations. It can parse random floating-point numbers at a speed of 1 GB/s on some systems. We find that it is often twice as fast as the best available competitor, and many times faster than many standard-library implementations.
``` ```
$ ./build/benchmarks/benchmark
# parsing random integers in the range [0,1) # parsing random integers in the range [0,1)
volume = 2.09808 MB volume = 2.09808 MB
netlib : 294.33 MB/s (+/- 2.4 %) 14.03 Mint/s netlib : 271.18 MB/s (+/- 1.2 %) 12.93 Mfloat/s
strtod : 86.53 MB/s (+/- 1.4 %) 4.12 Mint/s doubleconversion : 225.35 MB/s (+/- 1.2 %) 10.74 Mfloat/s
abseil : 521.66 MB/s (+/- 3.2 %) 24.86 Mint/s strtod : 190.94 MB/s (+/- 1.6 %) 9.10 Mfloat/s
fastfloat : 1061.86 MB/s (+/- 3.8 %) 50.61 Mint/s abseil : 430.45 MB/s (+/- 2.2 %) 20.52 Mfloat/s
fastfloat : 1042.38 MB/s (+/- 9.9 %) 49.68 Mfloat/s
``` ```
See https://github.com/lemire/simple_fastfloat_benchmark for our benchmarking code. See https://github.com/lemire/simple_fastfloat_benchmark for our benchmarking code.