Add Slon fortunes benchmarks by sebastienros · Pull Request #2 · draghidev/slon

sebastienros · 2026-08-27T16:43:15Z

Slon needs an end-to-end TechEmpower Fortunes workload that compares its pipelined PostgreSQL path with Npgsql under equivalent materialization and rendering behavior.

This adds Minimal API and low-level Kestrel Platform benchmark applications. Both drivers materialize messages as strings, append and sort the same model, and render the same RazorSlices template. The Slon path maps standard PostgreSQL connection settings into SlonDataSourceOptions, prepares one data-source-bound command at startup, reuses it concurrently with cancellation, and applies explicit pool and per-wire pipeline limits.

The accompanying Crank configurations clone Slon and pipelining as sibling sources, run only the Slon and Npgsql PostgreSQL jobs, and provide matching 512-connection /fortunes scenarios.

Validation included a full Release solution build, the existing test suite (792 passed, 4 skipped), all four app/driver combinations against PostgreSQL with identical sorted and HTML-escaped output, and Crank debug expansion for both configurations.

Run the benchmarks

The fork repository and branch overrides keep both the raw configuration and cloned Slon source pinned to this PR:

# Minimal: Slon
crank --config https://raw.githubusercontent.com/sebastienros/slon/refs/heads/sebros/slon-benchmarks/Slon.Benchmarks/Slon.Fortunes.Minimal/minimal-fortunes.benchmarks.yml --scenario minimal-postgresql-slon --profile aspnet-gold-lin --application.sources.Slon.repository https://github.com/sebastienros/slon.git --application.sources.Slon.branchOrCommit sebros/slon-benchmarks --json minimal-slon.json

# Minimal: Npgsql
crank --config https://raw.githubusercontent.com/sebastienros/slon/refs/heads/sebros/slon-benchmarks/Slon.Benchmarks/Slon.Fortunes.Minimal/minimal-fortunes.benchmarks.yml --scenario minimal-postgresql-npgsql --profile aspnet-gold-lin --application.sources.Slon.repository https://github.com/sebastienros/slon.git --application.sources.Slon.branchOrCommit sebros/slon-benchmarks --json minimal-npgsql.json

# Platform: Slon
crank --config https://raw.githubusercontent.com/sebastienros/slon/refs/heads/sebros/slon-benchmarks/Slon.Benchmarks/Slon.Fortunes.Platform/platform-fortunes.benchmarks.yml --scenario platform-postgresql-slon --profile aspnet-gold-lin --application.sources.Slon.repository https://github.com/sebastienros/slon.git --application.sources.Slon.branchOrCommit sebros/slon-benchmarks --json platform-slon.json

# Platform: Npgsql
crank --config https://raw.githubusercontent.com/sebastienros/slon/refs/heads/sebros/slon-benchmarks/Slon.Benchmarks/Slon.Fortunes.Platform/platform-fortunes.benchmarks.yml --scenario platform-postgresql-npgsql --profile aspnet-gold-lin --application.sources.Slon.repository https://github.com/sebastienros/slon.git --application.sources.Slon.branchOrCommit sebros/slon-benchmarks --json platform-npgsql.json

Port the Minimal API and low-level Platform fortunes workloads with comparable Slon and Npgsql PostgreSQL paths, plus multi-source Crank scenarios. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Use an atomic round-robin protocol pool so the Fortunes scenarios measure Slon command flows independently of the production datasource pool.

NinoFloris force-pushed the sebros/slon-benchmarks branch 5 times, most recently from 3ca31ea to e6b470b Compare August 27, 2026 22:36

NinoFloris changed the base branch from main to experiment/reader-driven-specialization August 27, 2026 22:46

NinoFloris force-pushed the experiment/reader-driven-specialization branch from 6ed140f to 5257a8b Compare August 27, 2026 22:52

NinoFloris force-pushed the sebros/slon-benchmarks branch from e6b470b to ae7ab2d Compare August 27, 2026 22:52

NinoFloris force-pushed the experiment/reader-driven-specialization branch from 5257a8b to 830d620 Compare August 27, 2026 23:12

NinoFloris force-pushed the sebros/slon-benchmarks branch 3 times, most recently from 3e0edae to 298e9b3 Compare August 28, 2026 00:50

NinoFloris force-pushed the experiment/reader-driven-specialization branch from 9f32d1c to cc6cc34 Compare August 28, 2026 12:37

NinoFloris force-pushed the sebros/slon-benchmarks branch from 298e9b3 to fda44d3 Compare August 28, 2026 12:37

NinoFloris changed the base branch from experiment/reader-driven-specialization to experiment/reader-collect August 28, 2026 21:55

NinoFloris force-pushed the sebros/slon-benchmarks branch 2 times, most recently from a0ce3bd to f9ebf75 Compare August 28, 2026 22:20

NinoFloris changed the base branch from experiment/reader-collect to experiment/reader-collect-zero-copy August 31, 2026 15:54

NinoFloris force-pushed the sebros/slon-benchmarks branch from f9ebf75 to 4d71a3e Compare August 31, 2026 15:55

NinoFloris added 11 commits September 4, 2026 14:59

Retain completion facts instead of the command in the message enumerator

45cf296

Arm per-read cancellation after command dispatch

8d809b3

Reduce backend message publication state

bfd5ad7

Publish peeked backend messages directly

b96947a

Use one backend message publication slot

330e96a

Parse backend messages once before publication

8dc4f7c

Derive backend message offsets on demand

f285493

Track backend batch sequence positions directly

9b1f51e

Publish fallback sequence positions granularly

b81787c

Move backend framing into the protocol read pipe

1d0038c

Rename backend message batches to cursors

4adcf26

NinoFloris and others added 28 commits September 4, 2026 17:51

Preserve buffered successors after result retention

2962a53

Trim duplicate command flow async state

10c1840

Reuse protocol result state across completion awaits

2be3748

Split command result read state machines

b6faab7

Avoid generic source driver dispatch wrapper

c35f529

Use runtime async for normal pipe operations on net11

9a95cad

Upgrade initial publication timestamp proof

7a4eb36

Advance retained results to their active buffer origin

4d88eaf

Restore stream reader un-examine state

a10f0b1

Release completed read grants at the idle edge

82e6137

Allow the PantherTE comparison harness

6215548

Route Slon continuations through the ambient scheduler

7e0b7d8

Allow unsafe unified flow pooling experiment

91a6962

Prototype tenure-safe pooled command flows

28a4fd5

Retain activation waiter only after flow reuse

e0d061d

Shrink runtime async pipe read suspension state

32dbf23

Add Slon fortunes benchmarks

8f7d684

Port the Minimal API and low-level Platform fortunes workloads with comparable Slon and Npgsql PostgreSQL paths, plus multi-source Crank scenarios. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Benchmark Slon through its lower protocol layer

04016c6

Use an atomic round-robin protocol pool so the Fortunes scenarios measure Slon command flows independently of the production datasource pool.

Compare raw and production pool placement

60a7f6f

Benchmark streaming and collected Slon results

16f3095

Render fortunes from retained UTF-8 fields

188cace

Tighten Fortunes consumption paths

21e84cb

Drive pooled protocol heartbeats centrally

1042048

Use one production Fortunes path

374e2bd

Add raw Fortunes templating

7c5cb6a

Run Slon fortunes through command result collection

a4fc50c

Benchmark reusable command flows in fortunes apps

c65b871

Retain Slon row memory through minimal rendering

1fdcc48

NinoFloris force-pushed the sebros/slon-benchmarks branch from 4d71a3e to 1fdcc48 Compare September 7, 2026 11:44

Use net11 SDK for Crank restore

8086182

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Add Slon fortunes benchmarks - #2

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sebastienros commented Aug 27, 2026 •

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sebastienros commented Aug 27, 2026 •

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