Use memcpy() to dump true/false/null #736
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Maybe, the standard C library may use SIMD instructions, so it is faster than our own code. Similar: - ohler55#734 - ohler55#674 − | before | after | result -- | -- | -- | -- Oj.dump (macOS) | 1.699M | 2.020M | 1.189x Oj.dump (Linux) | 1.849M | 2.260M | 1.222x ### Environment - macOS - macOS 12.1 - Apple M1 Max - Apple clang version 13.0.0 (clang-1300.0.29.30) - Ruby 3.1.0 - Linux - Zorin OS 16 - AMD Ryzen 7 5700G - gcc version 11.1.0 - Ruby 3.1.0 ### macOS #### Before ``` Warming up -------------------------------------- Oj.dump 169.730k i/100ms Calculating ------------------------------------- Oj.dump 1.699M (± 0.7%) i/s - 25.629M in 15.089624s ``` #### After ``` Warming up -------------------------------------- Oj.dump 201.206k i/100ms Calculating ------------------------------------- Oj.dump 2.020M (± 0.9%) i/s - 30.382M in 15.044372s ``` ### Linux #### Before ``` Warming up -------------------------------------- Oj.dump 180.943k i/100ms Calculating ------------------------------------- Oj.dump 1.849M (± 1.1%) i/s - 27.865M in 15.072276s ``` #### After ``` Warming up -------------------------------------- Oj.dump 224.695k i/100ms Calculating ------------------------------------- Oj.dump 2.260M (± 1.4%) i/s - 33.929M in 15.012352s ``` ### Test code ```ruby require 'benchmark/ips' require 'oj' data = { true: (0..10).map { true }, false: (0..10).map { false }, null: (0..10).map { nil }, } Benchmark.ips do |x| x.time = 15 x.report('Oj.dump') { Oj.dump(data) } end ```
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Jan 14, 2022
Maybe, the standard C library may use SIMD instructions, so it is faster than our own code. Similar: - ohler55#734 - ohler55#674 − | before | after | result -- | -- | -- | -- Oj.dump (macOS) | 1.699M | 2.020M | 1.189x Oj.dump (Linux) | 1.849M | 2.260M | 1.222x ### Environment - macOS - macOS 12.1 - Apple M1 Max - Apple clang version 13.0.0 (clang-1300.0.29.30) - Ruby 3.1.0 - Linux - Zorin OS 16 - AMD Ryzen 7 5700G - gcc version 11.1.0 - Ruby 3.1.0 ### macOS #### Before ``` Warming up -------------------------------------- Oj.dump 169.730k i/100ms Calculating ------------------------------------- Oj.dump 1.699M (± 0.7%) i/s - 25.629M in 15.089624s ``` #### After ``` Warming up -------------------------------------- Oj.dump 201.206k i/100ms Calculating ------------------------------------- Oj.dump 2.020M (± 0.9%) i/s - 30.382M in 15.044372s ``` ### Linux #### Before ``` Warming up -------------------------------------- Oj.dump 180.943k i/100ms Calculating ------------------------------------- Oj.dump 1.849M (± 1.1%) i/s - 27.865M in 15.072276s ``` #### After ``` Warming up -------------------------------------- Oj.dump 224.695k i/100ms Calculating ------------------------------------- Oj.dump 2.260M (± 1.4%) i/s - 33.929M in 15.012352s ``` ### Test code ```ruby require 'benchmark/ips' require 'oj' data = { true: (0..10).map { true }, false: (0..10).map { false }, null: (0..10).map { nil }, } Benchmark.ips do |x| x.time = 15 x.report('Oj.dump') { Oj.dump(data) } end ```
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Maybe, the standard C library may use SIMD instructions,
so it is faster than our own code.
Similar:
Oj.dumpperformance #674Environment
macOS
Before
After
Linux
Before
After
Test code