# Thread setup time eating up all parallel improvement?

**URL:** <https://discourse.julialang.org/t/thread-setup-time-eating-up-all-parallel-improvement/131214>\
**Category:** New to Julia\
**Tags:** question\
**Created:** [July 30, 2025, 5:59pm UTC](https://discourse.julialang.org/t/thread-setup-time-eating-up-all-parallel-improvement/131214 "2025-07-30T17:59:44Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![JJMerelo](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jjmerelo/32/217998_2.png) [@JJMerelo](https://discourse.julialang.org/u/JJMerelo)\
**Post date:** [July 31, 2025, 11:47am UTC](https://discourse.julialang.org/t/thread-setup-time-eating-up-all-parallel-improvement/131214/21 "2025-07-31T11:47:12Z")

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Thanks a lot for that. It was simply not set up for PRs. We didn’t think it would get this much attention and love, honestly.

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<div class="post-metadata">

**Author:** ![obsidianjulua](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/obsidianjulua/32/221495_2.png) [@obsidianjulua](https://discourse.julialang.org/u/obsidianjulua)\
**Post date:** [August 1, 2025, 9:16am UTC](https://discourse.julialang.org/t/thread-setup-time-eating-up-all-parallel-improvement/131214/22 "2025-08-01T09:16:31Z")

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Function gc\_controlled\_computation()  
GC.enable(false)  
Try  
# your code here  
Result = heavy\_computation()  
Return result  
Finally  
GC.enable(true)  
GC.gc()  
End  
End

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