[Coretime chain] Add high assignment count mitigation to testnets #6022
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seadanda
added
the
T14-system_parachains
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/cmd prdoc --pr 6022 --bump patch --audience "Runtime User" |
bkchr
approved these changes
Oct 17, 2024
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Just made it - that was too far down on my TODO list but sorted now |
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Fixed in Polkadot and Kusama in polkadot-fellows/runtimes#434 and this PR just adds to testnets.
We can handle a maximum of 28 assignments inside one XCM, while it's possible to have 80 (if a region is interlaced 79 times).
This can be chunked on the coretime chain side but currently the scheduler on the relay makes assumptions that means we can't send more than one chunk for a given core.
This just truncates the additional assignments until we can extend the relay to support this. This means that the first 27 assignments are taken, the final 28th is used to pad with idle to complete the mask (the relay also assumes that every schedule is complete). Any other assignments are dropped.