@sentry/browser size

• Review the documentation: https://docs.sentry.io/
• Search for existing issues: https://github.com/getsentry/sentry-javascript/issues
• Use the latest release: https://github.com/getsentry/sentry-javascript/releases

Package + Version

• @sentry/browser
• @sentry/node
• raven-js
• raven-node (raven for node)
• other:

Version:

4.0.2

Description

The size of the @sentry/browser is more than twice as large as the size of raven-js: 86 kB vs 39 kB (minified). In my opinion, this is definitely a regression and the serious reason not to update to the new version.

[HazAT]

Hey, thanks for bringing this up. While we understand and generally agree with your concerns about bundle size I think it’s fair to first compare the gzip bundle sizes instead of the uncompressed minified file size:

@sentry/browser is 21.3799 KB raven-js 13.44 KB

Also, while this might not be applicable to everyone, we provide and usually guide people to use our CDN Loader which will set up the SDK for you on your website.

see : https://docs.sentry.io/quickstart/?platform=browser

The footprint and impact on your pageload time of this script it <1KB gzipped while keeping the same functionality.

so tl;dr: We are aware of it, we know there is room for improvement but it’s not top priority right now.

[klaemo]

I think it’s fair to first compare the gzip bundle sizes instead of the uncompressed minified file size:

I would argue it is also fair to compare minified sizes as perfomance issues not only arise from downloading javascript, but also from parsing and execution. ~92kb is quite hefty and could add up to 1s of parse time on low-end devices (just for this one library!).

I’m not sure where you take the number of < 1KB for the CDN’ed script from. Could you elaborate? When I open https://browser.sentry-cdn.com/4.0.4/bundle.min.js I see a gzipped size of 22KB.

You should be aware that sentry’s sdk is just one of many libraries developers include.

PS: I love sentry, it’s been super helpful for us. Web performance is just something I’m passionate about. 😉