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https://github.com/pezkuwichain/pezkuwi-subxt.git
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Aaro Altonen
80616f6d03
[litep2p](https://github.com/altonen/litep2p) is a libp2p-compatible P2P networking library. It supports all of the features of `rust-libp2p` that are currently being utilized by Polkadot SDK. Compared to `rust-libp2p`, `litep2p` has a quite different architecture which is why the new `litep2p` network backend is only able to use a little of the existing code in `sc-network`. The design has been mainly influenced by how we'd wish to structure our networking-related code in Polkadot SDK: independent higher-levels protocols directly communicating with the network over links that support bidirectional backpressure. A good example would be `NotificationHandle`/`RequestResponseHandle` abstractions which allow, e.g., `SyncingEngine` to directly communicate with peers to announce/request blocks. I've tried running `polkadot --network-backend litep2p` with a few different peer configurations and there is a noticeable reduction in networking CPU usage. For high load (`--out-peers 200`), networking CPU usage goes down from ~110% to ~30% (80 pp) and for normal load (`--out-peers 40`), the usage goes down from ~55% to ~18% (37 pp). These should not be taken as final numbers because: a) there are still some low-hanging optimization fruits, such as enabling [receive window auto-tuning](https://github.com/libp2p/rust-yamux/pull/176), integrating `Peerset` more closely with `litep2p` or improving memory usage of the WebSocket transport b) fixing bugs/instabilities that incorrectly cause `litep2p` to do less work will increase the networking CPU usage c) verification in a more diverse set of tests/conditions is needed Nevertheless, these numbers should give an early estimate for CPU usage of the new networking backend. This PR consists of three separate changes: * introduce a generic `PeerId` (wrapper around `Multihash`) so that we don't have use `NetworkService::PeerId` in every part of the code that uses a `PeerId` * introduce `NetworkBackend` trait, implement it for the libp2p network stack and make Polkadot SDK generic over `NetworkBackend` * implement `NetworkBackend` for litep2p The new library should be considered experimental which is why `rust-libp2p` will remain as the default option for the time being. This PR currently depends on the master branch of `litep2p` but I'll cut a new release for the library once all review comments have been addresses. --------- Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> Co-authored-by: Dmitry Markin <dmitry@markin.tech> Co-authored-by: Alexandru Vasile <60601340+lexnv@users.noreply.github.com> Co-authored-by: Alexandru Vasile <alexandru.vasile@parity.io>
92 lines
3.5 KiB
TOML
92 lines
3.5 KiB
TOML
[package]
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name = "sc-service"
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version = "0.35.0"
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authors.workspace = true
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edition.workspace = true
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license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
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homepage = "https://substrate.io"
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repository.workspace = true
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description = "Substrate service. Starts a thread that spins up the network, client, and extrinsic pool. Manages communication between them."
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readme = "README.md"
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[lints]
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workspace = true
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[package.metadata.docs.rs]
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targets = ["x86_64-unknown-linux-gnu"]
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[features]
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default = ["rocksdb"]
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# The RocksDB feature activates the RocksDB database backend. If it is not activated, and you pass
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# a path to a database, an error will be produced at runtime.
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rocksdb = ["sc-client-db/rocksdb"]
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# exposes the client type
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test-helpers = []
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runtime-benchmarks = [
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"sc-client-db/runtime-benchmarks",
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"sp-runtime/runtime-benchmarks",
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]
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[dependencies]
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jsonrpsee = { version = "0.22", features = ["server"] }
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thiserror = { workspace = true }
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futures = "0.3.30"
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rand = "0.8.5"
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parking_lot = "0.12.1"
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log = { workspace = true, default-features = true }
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futures-timer = "3.0.1"
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exit-future = "0.2.0"
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pin-project = "1.0.12"
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serde = { workspace = true, default-features = true }
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serde_json = { workspace = true, default-features = true }
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sc-keystore = { path = "../keystore" }
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sp-runtime = { path = "../../primitives/runtime" }
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sp-trie = { path = "../../primitives/trie" }
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sp-externalities = { path = "../../primitives/externalities" }
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sc-utils = { path = "../utils" }
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sp-version = { path = "../../primitives/version" }
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sp-blockchain = { path = "../../primitives/blockchain" }
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sp-core = { path = "../../primitives/core" }
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sp-keystore = { path = "../../primitives/keystore" }
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sp-session = { path = "../../primitives/session" }
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sp-state-machine = { path = "../../primitives/state-machine" }
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sp-consensus = { path = "../../primitives/consensus/common" }
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sc-consensus = { path = "../consensus/common" }
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sp-storage = { path = "../../primitives/storage" }
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sc-network = { path = "../network" }
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sc-network-common = { path = "../network/common" }
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sc-network-light = { path = "../network/light" }
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sc-network-sync = { path = "../network/sync" }
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sc-network-types = { path = "../network/types" }
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sc-network-transactions = { path = "../network/transactions" }
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sc-chain-spec = { path = "../chain-spec" }
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sc-client-api = { path = "../api" }
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sp-api = { path = "../../primitives/api" }
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sc-client-db = { path = "../db", default-features = false }
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codec = { package = "parity-scale-codec", version = "3.6.1" }
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sc-executor = { path = "../executor" }
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sc-transaction-pool = { path = "../transaction-pool" }
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sp-transaction-pool = { path = "../../primitives/transaction-pool" }
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sc-transaction-pool-api = { path = "../transaction-pool/api" }
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sp-transaction-storage-proof = { path = "../../primitives/transaction-storage-proof" }
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sc-rpc-server = { path = "../rpc-servers" }
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sc-rpc = { path = "../rpc" }
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sc-rpc-spec-v2 = { path = "../rpc-spec-v2" }
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sc-informant = { path = "../informant" }
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sc-telemetry = { path = "../telemetry" }
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prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus" }
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sc-tracing = { path = "../tracing" }
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sc-sysinfo = { path = "../sysinfo" }
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tracing = "0.1.29"
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tracing-futures = { version = "0.2.4" }
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async-trait = "0.1.79"
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tokio = { version = "1.22.0", features = ["parking_lot", "rt-multi-thread", "time"] }
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tempfile = "3.1.0"
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directories = "5.0.1"
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static_init = "1.0.3"
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schnellru = "0.2.1"
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[dev-dependencies]
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substrate-test-runtime-client = { path = "../../test-utils/runtime/client" }
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substrate-test-runtime = { path = "../../test-utils/runtime" }
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