JuliusBrussee/caveman · error

cachebench: provider population exceeds 1024

Error message

cachebench: provider population exceeds 1024

What it means

Error "cachebench: provider population exceeds 1024" thrown in JuliusBrussee/caveman.

Source

Thrown at cacheengine/cachebench/simulate.go:35

	segments  []PrefixSegment
	expiresAt time.Time
}

type cachedPrefixGroup map[string]cachedPrefix

// RunSimulated evaluates deterministic agent workload without provider calls.
func RunSimulated(ctx context.Context, engine *cacheengine.Engine, providers []ProviderConfig, scenario Scenario, target Target) (Report, error) {
	if engine == nil {
		return Report{}, errors.New("cachebench: nil cache engine")
	}
	if err := validateTarget(target); err != nil {
		return Report{}, err
	}
	if len(providers) == 0 {
		return Report{}, errors.New("cachebench: no providers")
	}
	if len(providers) > 1024 {
		return Report{}, errors.New("cachebench: provider population exceeds 1024")
	}
	report := baseReport(BasisSimulated, scenario, target, QualityEquivalence)
	for _, provider := range providers {
		trace, err := GenerateTrace(provider, scenario)
		if err != nil {
			return Report{}, err
		}
		providerReport := evaluateSimulatedTrace(ctx, engine, trace, target)
		report.Providers = append(report.Providers, providerReport)
	}
	report.Overall = aggregateProviders(report.Providers, target)
	if report.Overall.GatePassed {
		report.Status = "pass"
	} else {
		report.Status = "fail"
	}
	report.EvidenceLimitations = []string{
		"deterministic provider-cache simulation; no provider request was sent",

View on GitHub (pinned to 27d5a3981a)

Solutions

1. Keep the provider population at or below 1024.

When it happens

Trigger: Thrown at cacheengine/cachebench/simulate.go:35 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of JuliusBrussee/caveman@27d5a3981a (2026-08-15). Data as JSON: /api/errors/ceb3f3f96d8561b1. Report an issue: GitHub.