yesterday i’ve uploaded a workflow that use recursive loop in order to achieve the result wanted by another knimer in the forum.
i suddendly realized how bad is the performance using this kind of loop.
disclaimer: i’ve allocated only 4gb to knime (yeah i know, really low…), but we’re talking about 30 rows by 4 columns to be looped… i mean, nothing enormus.
first iteration go very well, but then the ram usage start to drastically increase like a bad resource allocator here.
i’ve tried to switch all the node to cache the data on disk, seems slightly better, but still unusable.
Lucarecursive loop performance issue.knwf (36.1 KB)