Business outcomes vs. performance, Heroku's struggle, and free Stanford CS courses
Tags: performancematters, performance, monitoring
Published: 2020-10-15 20:39:48

Hi folks, 

Welcome back to Performance Matters. Thank you to everyone who has had a chance to check out our new [Ruby APM!](https://raygun.com/blog/announcing-ruby-application-performance-monitoring/) We hope you're enjoying using it as much as we enjoyed making it 🚀

Today, we're digging deep into the link between site speed and business outcomes, the performance of Ruby 3.0.0-preview1, and why Heroku's raw power is struggling to keep up.  

Enjoy! 

Your Curator 

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### FEATURED ARTICLES

![Alt Text](https://dev-to-uploads.s3.amazonaws.com/i/gl72e3oyleezsrw9zh7t.png)

<strong>Strengthening the link between site speed and business outcomes</strong>

As performance advocates, we champion the idea that improving performance adds value, but improving site speed comes with a cost. We need to persuade other stakeholders to prioritize and invest in performance by showing its value.
 
[Make the perfect pitch](https://andydavies.me/blog/2020/10/12/strengthening-the-link-between-site-speed-and-business-outcomes/)

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<strong>How's the performance of Ruby 3.0.0–preview1?</strong>


How does the new preview's performance stack up on Rails? And how reliable are these numbers?

[Let's find out](https://www.fastruby.io/blog/rails/performance/ruby/hows-the-performance-of-ruby-3.0.0-preview1.html)

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<strong>Heroku is being left in the dust when it comes to raw power</strong>

When thinking about server pricing, don't forget about single-thread performance. Slower ≠ cheaper.

[See why](https://mailchi.mp/railsspeed/why-single-thread-performance-matters?e=667f67d277)

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### BUG OF THE WEEK

<strong>Microsoft’s cloud-based Azure App Services could have allowed server-side forgery requests and remote code-execution attacks</strong>


Researchers have disclosed two flaws in Microsoft’s Azure web hosting application service, App Services, which if exploited could enable an attacker to take over administrative servers.

[Understand the flaws](https://threatpost.com/microsoft-azure-flaws-servers-takeover/159965/)

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### COMMUNITY

<strong>150+ Stanford Computer Science courses available online</strong>

A compilation of over 150 Stanford on-campus computer science courses that are, to varying degrees, available online.

[Start learning](https://www.classcentral.com/report/stanford-on-campus-courses/)

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<strong>Raygun's September launch notes</strong>

Raygun’s Launch Notes are your regular round-up of all the improvements we made to Raygun last month — from significant features to performance updates.

[What's been happening](https://raygun.com/blog/september-launch-notes-2020/)

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If you think Performance Matters is pretty great, why not [sign up](https://performancematters.dev/) to receive it in your inbox every week? 🙌

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![Alt Text](https://dev-to-uploads.s3.amazonaws.com/i/9uejrprdahebsqbx1myx.png)

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