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 package ConceptMaps

GET /ConceptMap/$translate?url=<map-url>&system=<src>&code=<code>&target=<tgt>

Translates codes using ConceptMaps bundled in FHIR R4 core and IPS packages. Covers FHIR-to-v2/v3 crosswalks (cm-administrative-gender-v3), status maps (sc-*), LOINC↔SNOMED mappings, severity and absence concept maps.

Preflight request 
GET /ConceptMap/$translate?url=http%3A%2F%2Fhl7.org%2Ffhir%2FConceptMap%2Fcm-administrative-gender-v3&system=http%3A%2F%2Fhl7.org%2Ffhir%2Fadministrative-gender&code=male&target=http%3A%2F%2Fterminology.hl7.org%2FCodeSystem%2Fv3-AdministrativeGender
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 fhirsmith 3.5K
100%
7.2K 0% ✓
2 ontoserver 702
20%
1.4K 0% ✓
3 termbox 211
6%
426 — ~
4 snowstorm 211
6%
426 — ~
5 hades 211
6%
426 — ~
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
fhirsmith 0.30ms0.35ms0.43ms1.3ms2.2ms4.5ms6.2ms10ms13ms
ontoserver 2.4ms4.3ms9.5ms5.6ms12ms33ms21ms109ms338ms