Is there an existing issue for this?

• I have checked for existing issues https://github.com/getsentry/sentry-javascript/issues
• I have reviewed the documentation https://docs.sentry.io/
• I am using the latest SDK release https://github.com/getsentry/sentry-javascript/releases

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using? If you use the CDN bundles, please specify the exact bundle (e.g. bundle.tracing.min.js) in your SDK setup.

@sentry/ember

SDK Version

7.38.0

Framework Version

4.10.0

Link to Sentry event

No response

SDK Setup

Sentry.init({
		enabled: environment === 'production',
		dsn,
		environment,
		integrations: [new BrowserTracing()],
		tracesSampleRate: 0.01,
		release: `a string`,
});

Steps to Reproduce

run a series of acceptance tests, take a heap snapshot once tests are completed, examine retainers. You may want to use https://github.com/dnachev/heapdump-cleanup to cleanup WeakMap retainers to get a clear view.

Expected Result

No retained app instances.

Actual Result

Retained App instance per-acceptance-test due to instrumentation.

I was able to resolve this for now by removing performance instrumentation (we were barely using it even in prod). Others hitting this will want to ensure that at least the following is true in test and development environments in config/environment.js

ENV = {
  '@sentry/ember': {
    disablePerformance: true,
  },
}