From 36913ab6c6973990d2075c3b2a9e4b8e006e75c0 Mon Sep 17 00:00:00 2001
From: Simone <simone@emulab.it>
Date: Sun, 17 May 2026 23:09:56 +0200
Subject: [PATCH] docs(phaseA): Passo 8 benchmark recorded (destroy fixed)
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Measure-CIBenchmark.ps1 x4 clean: clone/start/WinRM negligible,
destroy ~4-6s (shim common-param fix), 0 orphans. IP-acquire phase
(20-85s) is the dominant variable cost (VMware Tools IP detect) —
known, non-blocking. No reliable pre-Python PS baseline; infra
metrics tracked in benchmark.jsonl.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
---
 plans/PhaseA-user-checklist.md | 28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/plans/PhaseA-user-checklist.md b/plans/PhaseA-user-checklist.md
index 7e8a3fd..f1171b0 100644
--- a/plans/PhaseA-user-checklist.md
+++ b/plans/PhaseA-user-checklist.md
@@ -284,20 +284,26 @@ Validazione finale di A5 (definizione di "fatto Fase A").
 
 Confronto Python vs PowerShell. Pendenza A4.
 
-- [ ] Eseguire prima del merge:
+- [x] Eseguito `.\scripts\Measure-CIBenchmark.ps1` (4 iter):
 
-  ```powershell
-  .\scripts\Measure-CIBenchmark.ps1
-  ```
+  | Iter | Clone | Start | IP    | WinRM | Destroy | Boot tot |
+  | ---- | ----- | ----- | ----- | ----- | ------- | -------- |
+  | 1    | 0.63  | 1.75  | 66.57 | 0.01  | 4.81    | 68.96    |
+  | 2    | 0.63  | 1.89  | 20.21 | 0.01  | 6.39    | 22.74    |
+  | 3    | 0.62  | 1.72  | 85.07 | 0.01  | 4.50    | 87.42    |
+  | 4    | 0.61  | 1.72  | 60.97 | 0.01  | 4.20    | 63.31    |
 
-  Annotare il tempo medio per job.
+  Nessun errore, destroy OK (~4-6s), 0 orfani. Clone/start/WinRM
+  trascurabili; **fase IP (20-85s) = costo dominante e variabile**
+  (detect IP guest via VMware Tools / ci-report-ip) — noto, non
+  bloccante. Prerequisito scoperto: lo shim `Remove-BuildVM.ps1`
+  inoltrava `-ErrorAction` come `--error-action` (destroy falliva ->
+  orfana); risolto per tutti gli shim blind-loop (commit
+  `fix(shims): skip PowerShell common params`).
 
-- [ ] Confrontare con il baseline pre-Python (se disponibile in
-      `docs/OPTIMIZATION.md` o in un commit precedente). Tolleranza
-      target: **±10%**.
-
-- [ ] Se delta > 10%: aprire issue in `TODO.md` con dettagli per
-      profiling. NON è bloccante per il merge della Fase A.
+- [ ] (Opzionale) Confronto col baseline pre-Python: nessun baseline
+      PS affidabile registrato; metriche infra appese a
+      `F:\CI\Logs\benchmark.jsonl` per trend futuri. Non bloccante.
 
 ---