# Vector addition in Julia slower than numpy in Linux

**URL:** https://discourse.julialang.org/t/vector-addition-in-julia-slower-than-numpy-in-linux/38520
**Category:** Performance
**Created:** [May 1, 2020, 2:07am UTC](https://discourse.julialang.org/t/vector-addition-in-julia-slower-than-numpy-in-linux/38520 "2020-05-01T02:07:39Z")
**Posts on this page:** 2
**Page:** 2

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### Author: ![nilshg](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/nilshg/32/2283_2.png) [@nilshg](https://discourse.julialang.org/u/nilshg)
#### Post date: [May 1, 2020, 3:34pm UTC](https://discourse.julialang.org/t/vector-addition-in-julia-slower-than-numpy-in-linux/38520/21 "2020-05-01T15:34:02Z")

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I also wouldn’t blame Ubuntu:

```julia
In [6]: %timeit a + b
554 µs ± 40.4 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)

julia> @btime $a .+ $b;
  475.107 μs (2 allocations: 3.81 MiB)

julia> versioninfo()
Julia Version 1.4.1
Commit 381693d3df* (2020-04-14 17:20 UTC)
Platform Info:
  OS: Linux (x86_64-pc-linux-gnu)
  CPU: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-8.0.1 (ORCJIT, skylake)

```

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<div class="post-metadata">

### Author: ![aminsadeghi](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/aminsadeghi/32/22853_2.png) [@aminsadeghi](https://discourse.julialang.org/u/aminsadeghi)
#### Post date: [May 1, 2020, 9:02pm UTC](https://discourse.julialang.org/t/vector-addition-in-julia-slower-than-numpy-in-linux/38520/22 "2020-05-01T21:02:51Z")

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I think I might have made a mistake then. I’m getting very similar values now too! Sorry for wasting everybody’s time 🥺

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