# Episode 24 - Nextflow runtime updates: Requesting resources

**URL:** <https://community.seqera.io/t/episode-24-nextflow-runtime-updates-requesting-resources/144>\
**Category:** Events\
**Tags:** nextflow-podcast\
**Created:** [October 10, 2023, 1:25pm UTC](https://community.seqera.io/t/episode-24-nextflow-runtime-updates-requesting-resources/144 "2023-10-10T13:25:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mribeirodantas](https://dub1.discourse-cdn.com/flex013/user_avatar/community.seqera.io/mribeirodantas/32/235_2.png) [@mribeirodantas](https://community.seqera.io/u/mribeirodantas)\
**Post date:** [October 10, 2023, 1:25pm UTC](https://community.seqera.io/t/episode-24-nextflow-runtime-updates-requesting-resources/144/1 "2023-10-10T13:25:21Z")

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In this episode of the Channels podcast, we talked about computing resources. Ben Sherman took us through new and upcoming runtime improvements in Nextflow, leading to better performance, fine-tuning, and simpler syntax for pipelines.

We covered:

- Fractional CPU requests ([PR #2516](https://github.com/nextflow-io/nextflow/pull/2516))
- `resourceLimits` directive (to replace `check_max`) ([PR #2911](https://github.com/nextflow-io/nextflow/pull/2911))
- Virtual threads in Groovy ([PR #3871](https://github.com/nextflow-io/nextflow/pull/3871))
- WebAssembly runtime (a lightweight alternative to containers)

We mentioned a new blog post at the end, entitled [“Automating pipeline execution with Nextflow and Tower”](https://seqera.io/blog/automating-workflows-with-nextflow-and-tower/).

You can find the recent nf-core / Nextflow training events at [Trainings](https://nf-co.re/events/training)

Registration is closed for the Nextflow Summits 2023! But you can still watch the talks online: [https://summit.nextflow.io/](https://summit.nextflow.io/)

[![](https://europe1.discourse-cdn.com/flex013/uploads/seqera/original/1X/d3cfdabbb9b842278f13c7885de224dac99ddd63.jpeg "Episode 24: Nextflow runtime updates - Requesting resources") ](https://www.youtube.com/watch?v=Wm5muUvONyQ)

https://open.spotify.com/embed/show/1slEz7EL46cHa9vdRmPLY4/video?si=8b5ddd17f25b4f26&utm_source=oembed