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JSON gem is slow parsing integers/floats when there's multiple threads executing at once (in Ractors) #511

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luke-gru opened this issue Jan 23, 2023 · 1 comment
Open

JSON gem is slow parsing integers/floats when there's multiple threads executing at once (in Ractors) #511

luke-gru opened this issue Jan 23, 2023 · 1 comment

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@luke-gru
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See https://bugs.ruby-lang.org/issues/19288

I've opened this issue just to notify you guys.
@luke-gru luke-gru changed the title JSON gem is very slow parsing integers when there's multiple threads executing at once (in Ractors) JSON gem is very slow parsing integers/floats when there's multiple threads executing at once (in Ractors) Jan 23, 2023
@luke-gru luke-gru changed the title JSON gem is very slow parsing integers/floats when there's multiple threads executing at once (in Ractors) JSON gem is slow parsing integers/floats when there's multiple threads executing at once (in Ractors) Jan 23, 2023
@luke-gru luke-gru reopened this Jan 24, 2023
@luke-gru
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It looks like part of the issue is that interning all the object names is causing lots of VM locks, because the frozen strings are per-vm, not per ractor, so a VM lock is necessary to search or update the frozen string table.

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