Files
pezkuwi-subxt/substrate
Bastian Köcher 52a56e5f3d pallet-offences-benchmarking: Box events in verify (#13151)
* pallet-offences-benchmarking: Box events in verify

Events in frame are represented by an enum in the pallet and the runtime. The size of an enum in
Rust depends on the size of biggest variant. This means we always need to allocate memory for the
biggest variant when allocating memory for an event. The offences benchmarking is verifying the
benchmarking results by checking the events. To check the events it is generating all the expected
events. With the recent changes in Polkadot the events are too big and lead to issues when running
this verify functions. The solution is to box each event, as the vector holding all the events will
then only need to hold fat pointers * expected events, instead of size_of(event) * expected events.
This issue isn't a problem in production, as we never read the events on chain. When we are reading
the events, it is done in an offchain context and they are only decoded one by one.

Besides that this also enables the benchmarking verification for everyone running these benchmarks.

* FMT

* Disable checking again
2023-01-16 13:39:13 +01:00
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