September 2021 Meeting

The September 2021 meeting of LRUG will be on Monday the 13th of September, from 6:20pm to 8:00pm (meeting starts at 6:30pm).

Full registration details are given below, and please do note that the zoom meeting url is only sent to registered attendees, so please do make sure you do it.


How to use flamegraphs to find performance problems

Jade Dickinson will be running an interactive workshop:

Slow Ruby code can be a puzzle, but it doesn’t have to be that way. In this talk you will see how fun it can be to use flamegraphs to find performance problems. You’ll enjoy this talk if you know you have slow areas in your Ruby application*, and would like to learn how to find the code responsible.

You can find out more about what you need to prepare for the workshop via Jade's mailing list post about it.


The zoom call will stay open after the workshop is finished for a little bit if attendees want to chat for a while. It's not as good as shouting across a table at the Singer Tavern, but we make do with what we can. The speakers may hang out so you can ask them questions you weren't able to during the meeting. If you've got any ideas for something better, then please do let us know at Thanks!


Prior to attending you must familiarise yourself with our README paying particular attention to the code of conduct which applies to all attendees, even though we float on screens like so many tiny programming postage stamps.

Secure your place

Thanks to capitalism we can only host a limited number of people in our Zoom meetings, so you need to register via eventbrite. The link to the zoom meeting will only be sent to registered attendees on the day of the meeting, around about 6pm. Keep an eye out for the email and check your spam just in case.

Give yourself a head-start by downloading the zoom client (lol, as if you don't already have it).

Posted by Chris Lowis on Aug 24, 2021