Add a PolkaVM-based executor #3458
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michalkucharczyk
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dmitry-markin
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davxy
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paritytech:master
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ordian
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* master: (65 commits) collator protocol changes for elastic scaling (validator side) (#3302) Contracts use polkavm workspace deps (#3715) Add elastic scaling support in ParaInherent BenchBuilder (#3690) Removes `as [disambiguation_path]` from `derive_impl` usage (#3652) fix(paseo-spec): New Paseo Bootnodes (#3674) Improve Penpal runtime + emulated tests (#3543) Staking ledger bonding fixes (#3639) DescribeAllTerminal for HashedDescription (#3349) Increase timeout for assertions (#3680) Add subsystems regression tests to CI (#3527) Always print connectivity report (#3677) Revert "FRAME: Create `TransactionExtension` as a replacement for `SignedExtension` (#2280)" (#3665) authority-discovery: Add log for debugging DHT authority records (#3668) Construct Runtime v2 (#1378) Support for `keyring` in runtimes (#2044) Add api-name in `cannot query the runtime API version` warning (#3653) Add a PolkaVM-based executor (#3458) Adds default config for assets pallet (#3637) Bump handlebars from 4.3.7 to 5.1.0 (#3248) [Collator Selection] Fix weight refund for `set_candidacy_bond` (#3643) ...
dharjeezy
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Mar 24, 2024
This PR adds a new PolkaVM-based executor to Substrate. - The executor can now be used to actually run a PolkaVM-based runtime, and successfully produces blocks. - The executor is always compiled-in, but is disabled by default. - The `SUBSTRATE_ENABLE_POLKAVM` environment variable must be set to `1` to enable the executor, in which case the node will accept both WASM and PolkaVM program blobs (otherwise it'll default to WASM-only). This is deliberately undocumented and not explicitly exposed anywhere (e.g. in the command line arguments, or in the API) to disincentivize anyone from enabling it in production. If/when we'll move this into production usage I'll remove the environment variable and do it "properly". - I did not use our legacy runtime allocator for the PolkaVM executor, so currently every allocation inside of the runtime will leak guest memory until that particular instance is destroyed. The idea here is that I will work on the polkadot-fellows/RFCs#4 which will remove the need for the legacy allocator under WASM, and that will also allow us to use a proper non-leaking allocator under PolkaVM. - I also did some minor cleanups of the WASM executor and deleted some dead code. No prdocs included since this is not intended to be an end-user feature, but an unofficial experiment, and shouldn't affect any current production user. Once this is production-ready a full Polkadot Fellowship RFC will be necessary anyway.
bgallois
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Mar 25, 2024
This PR adds a new PolkaVM-based executor to Substrate. - The executor can now be used to actually run a PolkaVM-based runtime, and successfully produces blocks. - The executor is always compiled-in, but is disabled by default. - The `SUBSTRATE_ENABLE_POLKAVM` environment variable must be set to `1` to enable the executor, in which case the node will accept both WASM and PolkaVM program blobs (otherwise it'll default to WASM-only). This is deliberately undocumented and not explicitly exposed anywhere (e.g. in the command line arguments, or in the API) to disincentivize anyone from enabling it in production. If/when we'll move this into production usage I'll remove the environment variable and do it "properly". - I did not use our legacy runtime allocator for the PolkaVM executor, so currently every allocation inside of the runtime will leak guest memory until that particular instance is destroyed. The idea here is that I will work on the polkadot-fellows/RFCs#4 which will remove the need for the legacy allocator under WASM, and that will also allow us to use a proper non-leaking allocator under PolkaVM. - I also did some minor cleanups of the WASM executor and deleted some dead code. No prdocs included since this is not intended to be an end-user feature, but an unofficial experiment, and shouldn't affect any current production user. Once this is production-ready a full Polkadot Fellowship RFC will be necessary anyway.
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This PR adds a new PolkaVM-based executor to Substrate.
SUBSTRATE_ENABLE_POLKAVMenvironment variable must be set to1to enable the executor, in which case the node will accept both WASM and PolkaVM program blobs (otherwise it'll default to WASM-only). This is deliberately undocumented and not explicitly exposed anywhere (e.g. in the command line arguments, or in the API) to disincentivize anyone from enabling it in production. If/when we'll move this into production usage I'll remove the environment variable and do it "properly".No prdocs included since this is not intended to be an end-user feature, but an unofficial experiment, and shouldn't affect any current production user. Once this is production-ready a full Polkadot Fellowship RFC will be necessary anyway.