From 164ecfcc4c36d3405cd61a9152e4038005f952b3 Mon Sep 17 00:00:00 2001
From: Kevin Longe <273747162+kvlonge@users.noreply.github.com>
Date: Sat, 7 Nov 2026 08:06:01 +0000
Subject: [PATCH 1/2] build: build released wheels with one codegen unit per
 crate

---
 .github/workflows/build-distributions.yml | 9 +++++++--
 .github/workflows/verify.yml              | 2 ++
 Cargo.toml                                | 8 +++++++-
 3 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/build-distributions.yml b/.github/workflows/build-distributions.yml
index 12a3661dac..650353ebf1 100644
--- a/.github/workflows/build-distributions.yml
+++ b/.github/workflows/build-distributions.yml
@@ -34,6 +34,11 @@ on:
         required: false
         type: number
         default: 0
+      cargo-profile:
+        description: "Cargo profile of the native builds: dist for released wheels, release for quicker checks"
+        required: false
+        type: string
+        default: dist
     outputs:
       sha:
         description: "Commit the distributions were built from"
@@ -141,7 +146,7 @@ jobs:
           command: build
           # One platform records a cargo build timing report for build time work.
           args: >-
-            --release --out dist --features extension-module
+            --profile ${{ inputs.cargo-profile }} --out dist --features extension-module
             ${{ matrix.platform.name == 'linux-x86_64' && '--timings' || '' }}
           target: ${{ matrix.platform.target }}
           manylinux: auto
@@ -159,7 +164,7 @@ jobs:
         with:
           command: build
           args: >-
-            --release --out dist --manifest-path crates/sqlbuild-cli/Cargo.toml --features ui
+            --profile ${{ inputs.cargo-profile }} --out dist --manifest-path crates/sqlbuild-cli/Cargo.toml --features ui
             ${{ matrix.platform.name == 'linux-x86_64' && '--timings' || '' }}
           target: ${{ matrix.platform.target }}
           manylinux: auto
diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index 5661db7674..114ea51c4b 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -1099,6 +1099,8 @@ jobs:
       sdist: false
       upload: true
       retention-days: 3
+      # Release Distributions builds and smoke tests the slower dist profile for every release.
+      cargo-profile: release
 
   compose:
     name: Packaged Compose lifecycle
diff --git a/Cargo.toml b/Cargo.toml
index bb3bb388e2..9ef850601d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -203,8 +203,14 @@ debug = false
 [profile.release]
 strip = "symbols"
 
+# Released wheels: one codegen unit per crate keeps one copy of generic code that parallel units
+# each instantiate, so the native binaries are about an eighth smaller and build in about 2x time.
+[profile.dist]
+inherits = "release"
+codegen-units = 1
+
 # Local iteration: release-level optimisation with incremental builds, so rebuilding after a
-# focused change does not recompile the whole binding crate. CI and wheels use `release`.
+# focused change does not recompile the whole binding crate. CI uses `release`.
 [profile.fast]
 inherits = "release"
 incremental = true

From d00a761ee0d07b766b0cc3d1e7fbf89c2a46e70b Mon Sep 17 00:00:00 2001
From: Kevin Longe <273747162+kvlonge@users.noreply.github.com>
Date: Sat, 7 Nov 2026 08:24:26 +0000
Subject: [PATCH 2/2] build: allow the slower dist builds and compare like with
 like

Raise the wheel job timeout to 120 minutes for cold dist builds on Windows and
macOS, and build the release-performance candidate with the dist profile the
published baseline uses.
---
 .github/workflows/build-distributions.yml | 3 ++-
 .github/workflows/release-performance.yml | 3 +++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/build-distributions.yml b/.github/workflows/build-distributions.yml
index 650353ebf1..99770a02e4 100644
--- a/.github/workflows/build-distributions.yml
+++ b/.github/workflows/build-distributions.yml
@@ -93,7 +93,8 @@ jobs:
     name: Build wheel (${{ matrix.platform.name }})
     needs: source
     runs-on: ${{ matrix.platform.runner }}
-    timeout-minutes: 75
+    # Cold dist builds take up to about 2x the 17-31 minute release-profile jobs on Windows and macOS.
+    timeout-minutes: 120
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/release-performance.yml b/.github/workflows/release-performance.yml
index c9ddef80e3..00d27f1f14 100644
--- a/.github/workflows/release-performance.yml
+++ b/.github/workflows/release-performance.yml
@@ -66,7 +66,10 @@ jobs:
         run: uv python install 3.12
       - name: Install dependencies
         run: uv sync --locked --all-groups --all-extras
+      # The candidate uses the released wheels' cargo profile, so both sides of the comparison match.
       - name: Build candidate wheel
+        env:
+          MATURIN_PEP517_ARGS: --profile dist
         run: |
           uv build --wheel --out-dir "${RUNNER_TEMP}/candidate"
           uv build --wheel crates/sqlbuild-cli --out-dir "${RUNNER_TEMP}/candidate"