Extremely high memory usage

[johannesjo]

For a larger codebase with framework code (angular) I am using this module. When several errors are thrown and several stracktraces are requested in a short succession memory usage spikes absolutely out of control.

Expected Behavior

Should require a little bit less memory per error.

Current Behavior

Memory spikes out of control. This is how stacktraces are requested.

    StackTrace.fromError(err)
      .then((stackframes) => {
        return stackframes
          .splice(0, 20)
          .map((sf) => {
            return sf.toString();
          }).join('\n');
      });

[niemyjski]

@johannesjo would you mind attaching a snippet or unit test that would reproduce this issue so we could profile it.

[lionelchauvin]

This line could be the culprit of high memory usage: https://github.com/stacktracejs/stacktrace.js/blob/c12fccdbf21b8ecf215b35474070da1b1c23206d/dist/stacktrace.js#L2527

A big source file will be splitted each time a function name must be found. Imagine what happen with a source file of 10Mb and a stacktrace with hundred of function names.

[michaelAtCoalesce]

we have had browser crashes recently when using the stack trace grabbing functionality - as well as performance issues when gathering stack traces.

[niemyjski]

Would you mind submitting a pr with a fix, perhaps info could be cached.

[michaelAtCoalesce]

i noticed that my .map file was 111megabytes, by reworking my webpack.config i was able to get it down to 1mb and i think that is helping reduce the amount of crashing thats going on.

to those in this boat, see if you can split your bundles to be smaller

https://medium.com/hackernoon/the-100-correct-way-to-split-your-chunks-with-webpack-f8a9df5b7758