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@bkchr bkchr commented Nov 29, 2025

This implements Block bundling aka 500ms on the node side. Right now the pull request also contains the runtime changes, but this is already its own pull request.

The main changes are in the slot-based collator. Instead of building one block per core, blocks will be build as requested and distributed over the available cores.

Closes: #9080
Closes: #8963
Closes: #6495

bkchr and others added 30 commits October 18, 2024 23:24
…om:paritytech/polkadot-sdk into bkchr-parachain-block-data-multiple-blocks
@bkchr bkchr requested review from a team and koute as code owners November 29, 2025 22:49
@bkchr bkchr added T0-node This PR/Issue is related to the topic “node”. T9-cumulus This PR/Issue is related to cumulus. labels Nov 29, 2025
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bkchr commented Nov 30, 2025

/cmd fmt

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All GitHub workflows were cancelled due to failure one of the required jobs.
Failed workflow url: https://github.com/paritytech/polkadot-sdk/actions/runs/19872338402
Failed job name: test-linux-stable

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T0-node This PR/Issue is related to the topic “node”. T9-cumulus This PR/Issue is related to cumulus.

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Ensure that block bundles go into one PoV Dynamic upscaling of block time Two Fast To Block - Decreasing block times on parachains

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