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a644f01b6a
In proxy I switched to a leaky-bucket impl using the GCRA algorithm. I
figured I could share the code with pageserver and remove the
leaky_bucket crate dependency with some very basic tokio timers and
queues for fairness.
The underlying algorithm should be fairly clear how it works from the
comments I have left in the code.
---
In benchmarking pageserver, @problame found that the new implementation
fixes a getpage throughput discontinuity in pageserver under the
`pagebench get-page-latest-lsn` benchmark with the clickbench dataset
(`test_perf_olap.py`).
The discontinuity is that for any of `--num-clients={2,3,4}`, getpage
throughput remains 10k.
With `--num-clients=5` and greater, getpage throughput then jumps to the
configured 20k rate limit.
With the changes in this PR, the discontinuity is gone, and we scale
throughput linearly to `--num-clients` until the configured rate limit.
More context in
https://github.com/neondatabase/cloud/issues/16886#issuecomment-2315257641.
closes https://github.com/neondatabase/cloud/issues/16886
---------
Co-authored-by: Joonas Koivunen <joonas@neon.tech>
Co-authored-by: Christian Schwarz <christian@neon.tech>
116 lines
3.3 KiB
TOML
116 lines
3.3 KiB
TOML
[package]
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name = "pageserver"
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version = "0.1.0"
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edition.workspace = true
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license.workspace = true
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[features]
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default = []
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# Enables test-only APIs, incuding failpoints. In particular, enables the `fail_point!` macro,
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# which adds some runtime cost to run tests on outage conditions
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testing = ["fail/failpoints"]
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[dependencies]
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anyhow.workspace = true
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arc-swap.workspace = true
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async-compression.workspace = true
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async-stream.workspace = true
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async-trait.workspace = true
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bit_field.workspace = true
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byteorder.workspace = true
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bytes.workspace = true
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camino.workspace = true
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camino-tempfile.workspace = true
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chrono = { workspace = true, features = ["serde"] }
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clap = { workspace = true, features = ["string"] }
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const_format.workspace = true
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consumption_metrics.workspace = true
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crc32c.workspace = true
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crossbeam-utils.workspace = true
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either.workspace = true
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flate2.workspace = true
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fail.workspace = true
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futures.workspace = true
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git-version.workspace = true
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hex.workspace = true
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humantime.workspace = true
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humantime-serde.workspace = true
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hyper.workspace = true
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itertools.workspace = true
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md5.workspace = true
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nix.workspace = true
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# hack to get the number of worker threads tokio uses
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num_cpus = { version = "1.15" }
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num-traits.workspace = true
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once_cell.workspace = true
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pin-project-lite.workspace = true
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postgres.workspace = true
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postgres_backend.workspace = true
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postgres-protocol.workspace = true
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postgres-types.workspace = true
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rand.workspace = true
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range-set-blaze = { version = "0.1.16", features = ["alloc"] }
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regex.workspace = true
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scopeguard.workspace = true
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send-future.workspace = true
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serde.workspace = true
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serde_json = { workspace = true, features = ["raw_value"] }
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serde_path_to_error.workspace = true
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serde_with.workspace = true
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signal-hook.workspace = true
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smallvec = { workspace = true, features = ["write"] }
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svg_fmt.workspace = true
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sync_wrapper.workspace = true
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sysinfo.workspace = true
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tokio-tar.workspace = true
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thiserror.workspace = true
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tikv-jemallocator.workspace = true
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tokio = { workspace = true, features = ["process", "sync", "fs", "rt", "io-util", "time"] }
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tokio-epoll-uring.workspace = true
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tokio-io-timeout.workspace = true
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tokio-postgres.workspace = true
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tokio-stream.workspace = true
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tokio-util.workspace = true
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toml_edit = { workspace = true, features = [ "serde" ] }
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tracing.workspace = true
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twox-hash.workspace = true
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url.workspace = true
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walkdir.workspace = true
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metrics.workspace = true
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pageserver_api.workspace = true
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pageserver_compaction.workspace = true
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postgres_connection.workspace = true
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postgres_ffi.workspace = true
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pq_proto.workspace = true
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remote_storage.workspace = true
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storage_broker.workspace = true
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tenant_size_model.workspace = true
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utils.workspace = true
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workspace_hack.workspace = true
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reqwest.workspace = true
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rpds.workspace = true
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enum-map.workspace = true
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enumset = { workspace = true, features = ["serde"]}
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strum.workspace = true
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strum_macros.workspace = true
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[target.'cfg(target_os = "linux")'.dependencies]
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procfs.workspace = true
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[dev-dependencies]
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criterion.workspace = true
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hex-literal.workspace = true
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tokio = { workspace = true, features = ["process", "sync", "fs", "rt", "io-util", "time", "test-util"] }
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[[bench]]
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name = "bench_layer_map"
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harness = false
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[[bench]]
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name = "bench_walredo"
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harness = false
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[[bench]]
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name = "bench_ingest"
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harness = false
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