# More Predictable Shared Dyno Performance

DevFeed: [More Predictable Shared Dyno Performance](<https://devfeed.tech/articles/more-predictable-shared-dyno-performance-26470.md>)

Original publisher: [Read original article](<https://www.heroku.com/blog/more-predictable-shared-dyno-performance/>)

Author: Michael Friis

Published: 2023-04-11T23:00:00Z

Content type: release

Language: en

Sources: [Heroku](<https://devfeed.tech/sources/heroku.md>)

Topics: [Heroku](<https://devfeed.tech/topics/heroku.md>), [cpu](<https://devfeed.tech/topics/cpu.md>), [cloud-computing](<https://devfeed.tech/topics/cloud-computing.md>)

Tags: [cloud-computing](<https://devfeed.tech/tags/cloud-computing.md>), [dynos](<https://devfeed.tech/tags/dynos.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [improvements](<https://devfeed.tech/tags/improvements.md>), [performance](<https://devfeed.tech/tags/performance.md>), [platform](<https://devfeed.tech/tags/platform.md>)

## AI overview

Heroku describes improved resource isolation for shared dynos to reduce noisy-neighbor effects and make CPU access more stable and predictable. Shared dynos can still burst CPU usage, but less than before; Performance, Private, and Shield dynos are unaffected because they use dedicated instances.

## Source excerpt

In this post, we'd like to share an example of the kind of behind-the-scenes work that the Heroku team does to continuously improve the platform based on customer feedback. The Heroku Common Runtime is one of the best parts of Heroku. It's the modern embodiment of the principle of computing resource time-sharing pioneered by John [...] The post More Predictable Shared Dyno Performance appeared first on Heroku.