# Reading Data Is Still Too Slow

**URL:** <https://discourse.julialang.org/t/reading-data-is-still-too-slow/17919>\
**Category:** Data\
**Created:** [November 23, 2018, 5:54pm UTC](https://discourse.julialang.org/t/reading-data-is-still-too-slow/17919 "2018-11-23T17:54:56Z")\
**Posts on this page:** 1\
**Showing post:** 21

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**Author:** ![iwelch](https://avatars.discourse-cdn.com/v4/letter/i/8c91f0/32.png) [@iwelch](https://discourse.julialang.org/u/iwelch)\
**Post date:** [November 24, 2018, 7:49pm UTC](https://discourse.julialang.org/t/reading-data-is-still-too-slow/17919/21 "2018-11-24T19:49:55Z")

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[re: davidanthoff] Thanks, David, for the Feather correction. `Feather.materialize` did not work for me, either, but `FeatherFiles` did. Its performance was about 130 seconds. This is better than the 300 second deserialization time and 600 second CSV.read time. However, this still seems poor. R takes about 30 seconds.

I also just posted my serialization experience in [De-Serialization Performance](https://discourse.julialang.org/t/de-serialization-performance/17949) .

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