From 53cafb6802983cfde9d5e40c2924990e5b5859a8 Mon Sep 17 00:00:00 2001
From: "@permadeath.com" <did:plc:nlzmjyfv6loqtxyzvdcznwgf>
Date: Wed, 19 Aug 2026 23:52:44 -0400
Subject: [PATCH] test(unit-rules): put the newer operations on the speed
 ratchet

The repair list, the upload check and both ways of wearing a design down. The
searches are the expensive ones - 21 times a design read to wear to a figure
and 37 for a battle, each being dozens of scorings rather than one - which is
worth having recorded before something tries to run one per frame.
---
 TODO.md                             |  6 ++++
 crates/helm-bv/performance.txt      |  4 +++
 crates/helm-bv/tests/performance.rs | 46 +++++++++++++++++++++++++++++
 3 files changed, 56 insertions(+)

diff --git a/TODO.md b/TODO.md
index 489e302..b6803e4 100644
--- a/TODO.md
+++ b/TODO.md
@@ -399,6 +399,12 @@ The long pole, and the reason `helm-core` does no I/O. Tracked as
       its fastest round, because a shared machine has a floor and no ceiling.
       Run-to-run drift is then under a tenth, against a gate of a fifth.
 
+      Nine operations now, not five: the repair list, the upload check, and
+      both ways of wearing a design down. The two searches are the expensive
+      ones by a long way - wearing to a figure is 21 times a design read and a
+      battle is 37, because each is dozens of scorings rather than one - which
+      is worth having recorded before anything tries to run one per frame.
+
       Held only in release: an unoptimised build is several times slower and
       the two sets of figures are not comparable, so a debug run prints them
       and checks nothing. `HELM_PERF_BLESS=1` re-records, and a commit that
diff --git a/crates/helm-bv/performance.txt b/crates/helm-bv/performance.txt
index af5b6ab..3f25cdd 100644
--- a/crates/helm-bv/performance.txt
+++ b/crates/helm-bv/performance.txt
@@ -15,3 +15,7 @@ read a design                 1.000   # 187576ns here
 score a design                1.652   # 309941ns here
 score a damaged design        1.669   # 313115ns here
 attribute a damaged design    3.252   # 406012ns here
+repair a damaged design       0.009   # 1004ns here
+check one machine             1.618   # 180500ns here
+wear to a figure             21.462   # 2394000ns here
+wear in a battle             36.892   # 4115000ns here
diff --git a/crates/helm-bv/tests/performance.rs b/crates/helm-bv/tests/performance.rs
index 73aec45..b4b5816 100644
--- a/crates/helm-bv/tests/performance.rs
+++ b/crates/helm-bv/tests/performance.rs
@@ -169,6 +169,52 @@ fn nothing_has_got_materially_slower() {
                 );
             }),
         },
+        Task {
+            what: "repair a damaged design",
+            iterations: 500,
+            work: Box::new(|| {
+                std::hint::black_box(helm_bv::repairs(atlas, &damaged));
+            }),
+        },
+        Task {
+            what: "check one machine",
+            iterations: 500,
+            work: Box::new(|| {
+                std::hint::black_box(helm_bv::check(
+                    Some(atlas),
+                    &inputs.catalogue,
+                    &helm_unitfile::MulUnit {
+                        chassis: "Atlas".into(),
+                        model: "AS7-D".into(),
+                        gunnery: 4,
+                        piloting: 5,
+                        ..Default::default()
+                    },
+                ));
+            }),
+        },
+        Task {
+            what: "wear to a figure",
+            iterations: 60,
+            work: Box::new(|| {
+                std::hint::black_box(helm_bv::wear_to(atlas, &inputs.catalogue, 1500).ok());
+            }),
+        },
+        Task {
+            what: "wear in a battle",
+            iterations: 40,
+            work: Box::new(|| {
+                std::hint::black_box(
+                    helm_bv::wear_in_battle(
+                        atlas,
+                        &inputs.catalogue,
+                        1500,
+                        &helm_bv::Battle::default(),
+                    )
+                    .ok(),
+                );
+            }),
+        },
         Task {
             what: "attribute a damaged design",
             iterations: 500,
-- 
2.51.2