Rayhaan JaufeerallyandClaude Fable 5.1
cbc1dc7e44
The full-table benchmark measures one router taking in tables from its peers. What two routers of one AS do with each other, each sending the other every path it has (ADD-PATH both ways with all_paths, as a mesh of routers that each hold the network's whole view is configured), was measured nowhere: the exporter following the table's journal while the sessions fill the table, at the size of the Internet. In production that exchange took 70 seconds for a table that arrives from the Internet in 20. A new benchmark, mesh, starts two servers in one AS with distinct router IDs, peers them over IPv6 loopback with ADD-PATH both ways and all_paths, and feeds the first from four synthetic peers and the second from two over IPv4 loopback (BENCH_PEERS, BENCH_PEERS_B, BENCH_SCALE_DOWN). It prints how long each router takes to hold its own peers' routes and then the other's, with the rate of the latter. BENCH_DEADLINE prints the sessions' state if a router is not there in time. The benchmarks now allocate with jemalloc, as the daemon does, except when memory is being counted: the C library's allocator put its own locks in the profiles. Two routers on one host have each other's addresses as next hops, loopback addresses, which the import check refuses as it refuses a next hop that is this machine; the permissive import policy, which only tests use and no configuration can ask for, now takes them. Testing: the next-hop test covers both policies; the benchmark runs on macOS and in the Linux VM under perf. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
52 lines
1.1 KiB
TOML
52 lines
1.1 KiB
TOML
[package]
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name = "bgp-bench"
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description = "Benchmarks at the scale of the Internet routing table"
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authors.workspace = true
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edition.workspace = true
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homepage.workspace = true
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license.workspace = true
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repository.workspace = true
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version.workspace = true
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publish = false
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[dependencies]
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bgp-packet.workspace = true
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bgp-primitives.workspace = true
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bytes.workspace = true
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flate2 = "1"
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stats_alloc = { version = "0.1.10", optional = true }
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[target.'cfg(not(target_env = "msvc"))'.dependencies]
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tikv-jemallocator.workspace = true
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[dev-dependencies]
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bgp-integration-tests.workspace = true
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bgp-rib.workspace = true
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bgp-server.workspace = true
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tokio.workspace = true
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[features]
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# Counts every allocation, to report how much memory a table holds. The
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# counters are shared by all threads and slow them down, so timings are
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# taken without this and memory is measured in a run of its own.
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count-memory = ["dep:stats_alloc"]
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[[bench]]
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name = "full_table"
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harness = false
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[[bench]]
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name = "real_table"
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harness = false
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[[bench]]
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name = "transit"
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harness = false
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[lints]
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workspace = true
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[[bench]]
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name = "mesh"
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harness = false
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