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PowerShell

[CmdletBinding()]
param(
[string]$OllamaUrl = 'http://127.0.0.1:11434',
[string]$OutputPath = ''
)
$ErrorActionPreference = 'Stop'
$endpoint = $OllamaUrl.TrimEnd('/') + '/api/ps'
$runtime = Invoke-RestMethod -Uri $endpoint -TimeoutSec 15
$models = @($runtime.models | ForEach-Object {
[ordered]@{
name = $_.name
model = $_.model
loaded_size_bytes = $_.size
vram_size_bytes = $_.size_vram
parameter_size = $_.details.parameter_size
quantization = $_.details.quantization_level
context_length = $_.context_length
expires_at = $_.expires_at
}
})
$runners = @(Get-Process -Name 'llama-server' -ErrorAction SilentlyContinue | ForEach-Object {
[ordered]@{
process_id = $_.Id
working_set_bytes = $_.WorkingSet64
private_bytes = $_.PrivateMemorySize64
}
})
$report = [ordered]@{
collected_at_local = [DateTimeOffset]::Now.ToString('o')
source = $endpoint
loaded_models = $models
llama_server_processes = $runners
note = 'Point-in-time snapshot, not peak memory. Process-to-model mapping and total host RAM are not asserted.'
}
if (-not $OutputPath) {
$resultsDirectory = Join-Path $PSScriptRoot '..\evals\results'
$stamp = Get-Date -Format 'yyyy-MM-dd_HHmmss'
$OutputPath = Join-Path $resultsDirectory "ollama_runtime_$stamp.json"
}
$resolvedOutput = [System.IO.Path]::GetFullPath($OutputPath)
$outputDirectory = Split-Path -Parent $resolvedOutput
New-Item -ItemType Directory -Force -Path $outputDirectory | Out-Null
$report | ConvertTo-Json -Depth 8 | Set-Content -LiteralPath $resolvedOutput -Encoding utf8
Write-Output "Saved runtime snapshot: $resolvedOutput"
Write-Output ("Loaded models: {0}; llama-server processes: {1}" -f $models.Count, $runners.Count)