How JavaScript works: the rendering engine and tips to optimize its performance

Post by zlatkov » Thu, Mar 15, 2018, 9:54 PM UTC

igandile wrote: post #11

Klathmon wrote: post #4

This is somewhat off-topic, but has anyone here used SessionStack? How well does the service work, and is there a noticeable performance impact for the software to record on mid-range mobile devices? It looks really interesting and would probably be really helpful, but I can't include anything else in our applications that will further tax our already struggling lower-end devices with more code that needs to run and…

We've been using SessionStack in our team for around 6 months now (along with their native Sentry plugin) and there hasn't been any impact on our web app (it's a quite heavy React app).

Post by sonaltr » Fri, Mar 16, 2018, 12:55 PM UTC

benthehenten wrote: post #10

Klathmon wrote: post #4

This is somewhat off-topic, but has anyone here used SessionStack? How well does the service work, and is there a noticeable performance impact for the software to record on mid-range mobile devices? It looks really interesting and would probably be really helpful, but I can't include anything else in our applications that will further tax our already struggling lower-end devices with more code that needs to run and…

I'm not sure about the implementation in Session Stack, but I work at LogRocket ( https://logrocket.com ) where we're solving a similar problem. We use a few methods to ensure that we have a minimal overhead on performance. - We use worker threads for data encoding and network I/O - We use the MutationObserver API for capturing diffs of the DOM - We pull static resources directly from an application's servers (vs upl…