Memory leak in SKIA blur

[schlonzo]

preview 385. took me quite a while to find the little bugger:

memory leak.vl (17.7 KB)

[robotanton]

Hi @schlonzo,

thank you, confirmed.
We are investigating.

Best,
Anton

[robotanton]

Hi @schlonzo,

it turned out (as @Elias has found out), that setting the GRContext’s Cache (use the GRContext node) back to 16MB again (in was increased in in 2021.4) helps.

Also, in your particular patch I would rather use ImageFilter’s Blur and apply it to the whole Layer, like so (there is no leak if the ImageFilter or MaskFilter is not used in ForEach):

Will it work for you?

We’ll also update the help patches, to clarify MaskFilters/ImageFilters:
“Mask filters are effects that manipulate the geometry and alpha channel of graphical objects.
If you want to blur an entire image (or Layer) use the ImageFilter’s Blur instead.”

Best,
Anton