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Bug #13629
closedImprove performance for copying array elements
Description
ary_memcpy0() has calculated the cache line size every time when copy array elements.
This patch will replace it with pre calculated value of cache line size.
Array#+ will be faster around 2%.
Before¶
Array#+(other) 5.167M (± 0.1%) i/s - 25.928M in 5.017629s
After¶
Array#+(other) 5.256M (± 0.2%) i/s - 26.410M in 5.025261s
Test code¶
require 'benchmark/ips'
Benchmark.ips do |x|
x.report "Array#+(other)" do |loop|
ary1 = [1, 2, 3]
ary2 = [4, 5]
i = 0
while i < loop
ary1 + ary2
i += 1
end
end
end
Patch¶
Updated by stomar (Marcus Stollsteimer) almost 7 years ago
- Subject changed from Improve performance in where copy array elements to Improve performance for copying array elements
Updated by nobu (Nobuyoshi Nakada) almost 7 years ago
- Status changed from Open to Rejected
Nothing changed actually.
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