FHIR TX Benchmark
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Round 0

2026-04-08

Apple M3, 8-core · 24 GB · macOS Tahoe 26.3 · Docker Desktop 4.64.0 (8 CPU / 20 GB)

FHIR Search (CodeSystem, ValueSet)

GET /ValueSet or GET /CodeSystem with query parameters

Tests standard FHIR search across both ValueSet and CodeSystem resource types. Inputs are drawn from a pool of search parameter combinations including url, version, and _count.

Preflight request 
GET /ValueSet?url=http%3A%2F%2Fhl7.org%2Ffhir%2FValueSet%2Fadministrative-gender
Accept: application/fhir+json
Ranking
Servers ranked by weighted RPS (wRPS) for this test. wRPS = raw RPS × per-test normalizer × bias factor. Score % is relative to the top performer. Raw RPS is the measured peak throughput; imputed values (shown in italics in orange) are estimated for servers that did not run this test. Status: ✓ preflight passed, ✗ failed, ~ skipped.
# Server wRPS Score RPS Errors Status
1 termbox 3.7K
100%
3.4K 0% ✓
2 fhirsmith 337
9%
317 0% ✓
3 snowstorm 247
7%
233 0% ✓
4 ontoserver 3
0%
3 50.6% ✓
5 hades 2
0%
2 — ~
Latency
Latency percentiles per server across all VU levels. Columns: percentile / VU count.
p50/1 p95/1 p99/1 p50/10 p95/10 p99/10 p50/50 p95/50 p99/50
termbox 0.49ms0.99ms1.9ms2.1ms5.1ms8.9ms12ms25ms37ms
fhirsmith 1.3ms27ms30ms18ms87ms110ms193ms342ms463ms
ontoserver 12ms7.32s8.37s93ms15.58s46.60s38.76s51.43s51.43s
snowstorm 32ms79ms217ms57ms144ms319ms124ms458ms630ms