Silent `@warn` allocates in VSCode but not in terminal

[artemsolod]

This allocates differently in terminal and VSCode: (julia 1.9.3, julia-vscode v1.52.2, MacOS & ubuntu)

using BenchmarkTools

function warn_f(x)
    @warn "Warning" maxlog=1
end

function foo(x)
    warn_f(x)
    x
end

foo(3) # prints warning
@btime foo(3)
# 6.492 μs (41 allocations: 5.66 KiB) in VSCode
# 48.283 ns (0 allocations: 0 bytes) in terminal

[DanielDoehring]

Any update on this?

[pfitzseb]

For the most part this is expected behaviour, since VS Code injects a logger into the runtime for progress bar handling. You can disable that in the settings or by wrapping your code in a with_logger block.

[DanielDoehring]

Thanks for the swift reply Sebastian!