# Sparse matrix-vector product: much more slow than Matlab

**URL:** <https://discourse.julialang.org/t/sparse-matrix-vector-product-much-more-slow-than-matlab/7840>\
**Category:** Performance\
**Tags:** matlab, optimization\
**Created:** [December 18, 2017, 9:14pm UTC](https://discourse.julialang.org/t/sparse-matrix-vector-product-much-more-slow-than-matlab/7840 "2017-12-18T21:14:14Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![StefanKarpinski](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stefankarpinski/32/24_2.png) [@StefanKarpinski](https://discourse.julialang.org/u/StefanKarpinski)\
**Post date:** [December 18, 2017, 9:20pm UTC](https://discourse.julialang.org/t/sparse-matrix-vector-product-much-more-slow-than-matlab/7840/2 "2017-12-18T21:20:10Z")

</div>

Are you [timing in global scope](https://docs.julialang.org/en/latest/manual/performance-tips/#Measure-performance-with-%5B@time%5D(@ref)-and-pay-attention-to-memory-allocation-1)?

---

_[View the full topic](https://discourse.julialang.org/t/sparse-matrix-vector-product-much-more-slow-than-matlab/7840)._