# Sum performance for Array{Float64,2} elements

**URL:** https://discourse.julialang.org/t/sum-performance-for-array-float64-2-elements/10873
**Category:** Performance
**Created:** [May 13, 2018, 8:04pm UTC](https://discourse.julialang.org/t/sum-performance-for-array-float64-2-elements/10873 "2018-05-13T20:04:40Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![LaurentPlagne](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/laurentplagne/32/10103_2.png) [@LaurentPlagne](https://discourse.julialang.org/u/LaurentPlagne)
#### Post date: [May 13, 2018, 8:28pm UTC](https://discourse.julialang.org/t/sum-performance-for-array-float64-2-elements/10873/3 "2018-05-13T20:28:20Z")

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Well, I guess I should obtain around 16 gflops for small arrays that fit in the cache memory. I obtain 18 Gflops when adding one to an array [Nested functions with SubArray argument - #4 by LaurentPlagne](https://discourse.julialang.org/t/nested-functions-with-subarray-argument/10502/4)

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