R View: Very slow perfromance

KNIME Extensions
1

I'm having an issue similar to this old one:

https://tech.knime.org/forum/r-statistics-nodes-and-integration/r-statistic-and-r-script-are-running-extremely-slow-in-loop

My R View node is very slow, also outside of loops. As explained in post above, when startign the node there is usually a 3 second delay where the node just stays at 0 and then it completes immedialtely. So for me it's clear the issue lies in the interface to R and not R itself (Using R version that ships with knime) due to the delay at the start and the fact that the amount of data and visualizations I create are trivial. In fact I can create a table with 1 row and 1 column and do nothing in the R View Node and these 3 seconds still happen. Probably this is R starting uo taking so long?

I tired it on 2 different PCs and the behavior is the same:

Windows Server 2012 R2 with 32 Gb of RAM

Windows 7 with 8 GB of RAM.

So it's either a KNIME issue or Windows issue.

 

 

 

 

2

Hi beginner_,

The bottleneck here is due to KNIME having to open R and connect to it via the rserve package. Establishing this external connection creates some overhead, hence the three second delay you are experiencing.

Cheers,

Roland

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