tsup OOM Error

[jutrec]

Using tsup to build our app, we see a huge memory leak in the process.

Locally, the node.js JavaScript Runtime gets increasingly bigger until it reaches 4GB of Memory, and then it crashed. The crash occurs in 30sec to 1 minute after launching the app, and doing nothing at all with it.

In the CI pipeline, we increased the max memory size to 8GB using NODE_OPTIONS: --max_old_space_size=8192, which did the job...

We have been experimenting with using the tsup --experimental-dts to replace the normal --dts. So far, the app memory is stable around 600MB locally, and build 3 times faster in the CI pipeline (30s, down from 1min30s).

So far, no issues with the new tsup config. We will continue to monitor the effects of the new config.