Hello, everyone Very simple code, the speed is really slow, I suspect that the method of using Ref in the structure is wrong Everyone, please take a look, thank you mutable struct T3 f1::Int64 f2::String f3::Float64 EvlP1::Ref{Float64} f5::Vector{Int64} function T3() this = new()…

Welcome! To echo Oscar’s complaint, you already have a mutable struct, so you don’t need the Ref here. If you really want the behavior of a C pointer, replace Ref with Base.RefValue{Float64} to avoid using an abstract type.

Very simple code, why would there be performance problems

General Usage Performance

Zq_F December 21, 2020, 1:25am 13

Thank you all, the problem has been solved

Topic		Replies	Views
[SOLVED] 37x performance hit when wrapping Refs. Any solution? Performance	2	485	May 20, 2021
Ref{T} vs Base.RefValue{T} Performance	20	541	April 10, 2025
Mutable struct versus Base.RefValue General Usage question	3	1251	May 6, 2020
Ref is not a concrete type - poorly documented? Performance question , documentation	17	525	April 12, 2025
Warntype_last() outputs red ::Ref{Float64} General Usage	4	279	February 20, 2023

Very simple code, why would there be performance problems

Related topics