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increase specialization of _totuple #41515

Merged
merged 1 commit into from
Jul 14, 2021
Merged

increase specialization of _totuple #41515

merged 1 commit into from
Jul 14, 2021

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JeffBezanson
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Helps #41512

After:

julia> @time doit(itr)
  0.000285 seconds (10.00 k allocations: 312.500 KiB)

so almost 100x speedup, but I'm not sure where the remaining allocation is coming from.

@JeffBezanson JeffBezanson added the performance Must go faster label Jul 8, 2021
Sacha0
Sacha0 approved these changes Jul 8, 2021
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These tough reviews Jeff.

simeonschaub
simeonschaub approved these changes Jul 8, 2021
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Is the type annotation here still needed?

julia/base/tuple.jl

Line 332 in 58f9a12

ts = _totuple(rT, itr, y[2])::rT
(Won't hurt to leave it in, just curious.)

Otherwise LGTM.

@JeffBezanson
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Yes, the type assert seems to still help. I would guess due to recursion widening of some sort.

@JeffBezanson JeffBezanson merged commit 468b157 into master Jul 14, 2021
@JeffBezanson JeffBezanson deleted the jb/specialize_totuple branch July 14, 2021 19:48
KristofferC pushed a commit that referenced this pull request Jul 19, 2021
@JeffBezanson @KristofferC
increase specialization of _totuple (#41515)
6c944ee 
Helps #41512

(cherry picked from commit 468b157)
@KristofferC KristofferC mentioned this pull request Jul 19, 2021
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KristofferC pushed a commit that referenced this pull request Jul 20, 2021
@JeffBezanson @KristofferC
increase specialization of _totuple (#41515)
61d1ca8 
Helps #41512

(cherry picked from commit 468b157)
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@simeonschaub simeonschaub simeonschaub approved these changes

@Sacha0 Sacha0 Sacha0 approved these changes

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@JeffBezanson @simeonschaub @Sacha0 @KristofferC