[R-SIG-Mac] R-gui slow since last update

ALPEROVYCH Yan ALPEROVYCH @end|ng |rom em-|yon@com
Fri Apr 30 17:56:58 CEST 2021

Dear all,

Beyond the occasional red warnings about the 'NSPop….' buttons, warmups, etc. and similar issues reported elsewhere here I’ve noted the slowdown of R console with more and more output. Here is what I do to reliably reproduced it on my machine - MacBook Pro 2017 with Touch Bar (sessionInfo() is below).

1. Start fresh R-gui

2. Paste the following text in the editor. Note that lines are commented, this is enough to show the problem. It obvisouly gets worse if R has to evaluate.

# m[[ 1]] <- .f(update(fml, . ~ . -x1 + x2))
# m[[ 2]] <- .f(update(fml, . ~ . -x1 + x2 + x3))
# m[[ 3]] <- .f(update(fml, . ~ . -x1 + x2 + x4))
# m[[ 4]] <- .f(update(fml, . ~ . -x1 + x2 + x5))
# m[[ 5]] <- .f(update(fml, . ~ . -x1 + x2 + x6))
# m[[ 6]] <- .f(update(fml, . ~ . -x1 + x2 + x7))
# m[[ 7]] <- .f(update(fml, . ~ . -x1 + x2 + x8))
# m[[ 8]] <- .f(update(fml, . ~ . -x1 + x2 + x9))
# m[[ 9]] <- .f(update(fml, . ~ . -x1 + x2 + x10))
# m[[10]] <- .f(update(fml, . ~ . -x1 + x2 + x11))

3. Execute as block once - the output appears almost immediately. Execute the second time - the slight delay is already noticeable. Continue to 3-4 time and the delay between the Cmd+Enter and the output is now up to 3-4 seconds and occasional beachball…

Any help is greatly appreciated.

Here is the sessionInfo()

R version 4.0.5 (2021-03-31)
Platform: x86_64-apple-darwin17.0 (64-bit)
Running under: macOS Big Sur 10.16

Matrix products: default
BLAS:   /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRblas.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRlapack.dylib

[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

loaded via a namespace (and not attached):
[1] compiler_4.0.5

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