# How to use CachingPool?

**URL:** <https://discourse.julialang.org/t/how-to-use-cachingpool/18498>\
**Category:** Julia at Scale\
**Created:** [December 9, 2018, 6:29pm UTC](https://discourse.julialang.org/t/how-to-use-cachingpool/18498 "2018-12-09T18:29:02Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![MaximilianJHuber](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/maximilianjhuber/32/2579_2.png) [@MaximilianJHuber](https://discourse.julialang.org/u/MaximilianJHuber)\
**Post date:** [December 10, 2018, 10:56pm UTC](https://discourse.julialang.org/t/how-to-use-cachingpool/18498/4 "2018-12-10T22:56:05Z")

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You are right, the `CachingPool` is a [subtype](https://github.com/JuliaLang/julia/blob/c2b61df607f24c0c58076c70dfb4f4a08f0f5a73/stdlib/Distributed/src/workerpool.jl#L273) of an `AbstractWorkerPool`! Thank you!

It might be used incorrectly (compared to Julia 1.0.2) [here](https://discourse.julialang.org/t/pmap-slow-compared-to-map/14691), [here](https://discourse.julialang.org/t/pmap-performance-regression-pmap-x-f-x-y-x-creates-copies-of-y/14221/9), [here](https://discourse.julialang.org/t/everywhere-and-pmap-inside-of-a-function/5405/6), and [here](https://discourse.julialang.org/t/how-should-i-implement-parallel-maximum-likelihood/10113).

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