mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-25 22:17:58 +00:00
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>
94 lines
3.9 KiB
TOML
94 lines
3.9 KiB
TOML
[package]
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name = "polkadot-subsystem-bench"
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description = "Subsystem performance benchmark client"
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version = "1.0.0"
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authors.workspace = true
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edition.workspace = true
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license.workspace = true
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readme = "README.md"
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publish = false
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[lib]
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name = "polkadot_subsystem_bench"
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path = "src/lib/lib.rs"
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[[bin]]
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name = "subsystem-bench"
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path = "src/cli/subsystem-bench.rs"
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# Prevent rustdoc error. Already documented from top-level Cargo.toml.
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doc = false
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[dependencies]
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polkadot-node-subsystem = { path = "../subsystem" }
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polkadot-node-subsystem-util = { path = "../subsystem-util" }
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polkadot-node-subsystem-types = { path = "../subsystem-types" }
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polkadot-node-primitives = { path = "../primitives" }
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polkadot-primitives = { path = "../../primitives" }
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polkadot-node-network-protocol = { path = "../network/protocol" }
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polkadot-availability-recovery = { path = "../network/availability-recovery", features = ["subsystem-benchmarks"] }
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polkadot-availability-distribution = { path = "../network/availability-distribution" }
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polkadot-node-core-av-store = { path = "../core/av-store" }
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polkadot-node-core-chain-api = { path = "../core/chain-api" }
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polkadot-availability-bitfield-distribution = { path = "../network/bitfield-distribution" }
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color-eyre = { version = "0.6.1", default-features = false }
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polkadot-overseer = { path = "../overseer" }
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colored = "2.0.4"
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assert_matches = "1.5"
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async-trait = "0.1.79"
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sp-keystore = { path = "../../../substrate/primitives/keystore" }
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sc-keystore = { path = "../../../substrate/client/keystore" }
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sp-core = { path = "../../../substrate/primitives/core" }
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clap = { version = "4.5.3", features = ["derive"] }
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futures = "0.3.30"
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futures-timer = "3.0.2"
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bincode = "1.3.3"
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sha1 = "0.10.6"
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hex = "0.4.3"
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gum = { package = "tracing-gum", path = "../gum" }
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polkadot-erasure-coding = { package = "polkadot-erasure-coding", path = "../../erasure-coding" }
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log = { workspace = true, default-features = true }
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env_logger = "0.11"
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rand = "0.8.5"
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# `rand` only supports uniform distribution, we need normal distribution for latency.
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rand_distr = "0.4.3"
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bitvec = "1.0.1"
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kvdb-memorydb = "0.13.0"
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parity-scale-codec = { version = "3.6.1", features = ["derive", "std"] }
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tokio = { version = "1.24.2", features = ["parking_lot", "rt-multi-thread"] }
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clap-num = "1.0.2"
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polkadot-node-subsystem-test-helpers = { path = "../subsystem-test-helpers" }
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sp-keyring = { path = "../../../substrate/primitives/keyring" }
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sp-application-crypto = { path = "../../../substrate/primitives/application-crypto" }
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sc-network = { path = "../../../substrate/client/network" }
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sc-network-types = { path = "../../../substrate/client/network/types" }
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sc-service = { path = "../../../substrate/client/service" }
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sp-consensus = { path = "../../../substrate/primitives/consensus/common" }
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polkadot-node-metrics = { path = "../metrics" }
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itertools = "0.11.0"
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polkadot-primitives-test-helpers = { path = "../../primitives/test-helpers" }
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prometheus_endpoint = { package = "substrate-prometheus-endpoint", path = "../../../substrate/utils/prometheus" }
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prometheus = { version = "0.13.0", default-features = false }
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serde = { workspace = true, default-features = true }
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serde_yaml = { workspace = true }
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serde_json = { workspace = true }
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polkadot-node-core-approval-voting = { path = "../core/approval-voting" }
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polkadot-approval-distribution = { path = "../network/approval-distribution" }
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sp-consensus-babe = { path = "../../../substrate/primitives/consensus/babe" }
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sp-runtime = { path = "../../../substrate/primitives/runtime", default-features = false }
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sp-timestamp = { path = "../../../substrate/primitives/timestamp" }
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schnorrkel = { version = "0.11.4", default-features = false }
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# rand_core should match schnorrkel
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rand_core = "0.6.2"
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rand_chacha = { version = "0.3.1" }
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paste = "1.0.14"
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orchestra = { version = "0.3.5", default-features = false, features = ["futures_channel"] }
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pyroscope = "0.5.7"
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pyroscope_pprofrs = "0.2.7"
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[features]
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default = []
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