Reduce total CI duration (#536)

## Description

Improves overall time spent for our CI checks to complete. For cache
hits, total time decreases from ~70min to ~29min.

## Overview

```mermaid
gantt
    title CI on a PR — BEFORE ~70m vs NOW ~29m
    dateFormat HH:mm
    axisFormat %M

    section BEFORE ~70m
    [release] build-wasm 20m                      :r1, 00:00, 20m
    [release] build-x86_64-apple-darwin 17m       :r2, 00:00, 17m
    [release] build-x86_64-pc-windows-msvc 11m    :r3, 00:00, 11m
    [release] build-x86_64-unknown-linux-musl 10m :r4, 00:00, 10m
    [release] build-aarch64-apple-darwin 8m       :r5, 00:00, 8m
    [release] create-macos-universal 14s          :r6, 00:17, 1m
    [test-wasm] own duplicate wasm build 19m      :w1, 00:00, 19m
    [test-wasm] test matrix 3m                    :w2, 00:19, 3m
    [test] required 12m                                            :crit, t1, 00:00, 12m
    [differential-tests] build matrix waits 8m for release         :crit, t2, 00:12, 8m
    [differential-tests] macos-x86_64 compile and hash 44m         :crit, t3, 00:20, 44m
    [differential-tests] windows-x86_64 compile and hash 26m       :t4, 00:20, 26m
    [differential-tests] linux-x86_64 compile and hash 20m         :t5, 00:20, 20m
    [differential-tests] macos-arm64 compile and hash 15m          :t6, 00:20, 15m
    [differential-tests] run-e2e-tests parallel 43m                :t7, 00:22, 43m
    [differential-tests] compare-hashes 5m                         :crit, t8, 01:04, 5m
    [hardhat] use-hardhat chained 1m                               :crit, t9, 01:09, 1m

    section NOW ~29m
    [release] build-windows 3m              :nr1, 00:00, 3m
    [release] build-x86_64-apple-darwin 7m  :nr2, 00:00, 7m
    [release] build-linux 2m                :nr3, 00:00, 2m
    [release] build-aarch64-apple-darwin 2m :nr4, 00:00, 2m
    [release] create-macos-universal 23s    :nr5, 00:07, 1m
    [release] build-wasm cache hit ~11s     :nr6, 00:15, 1m
    [test-wasm] shared wasm build 15m       :nw1, 00:00, 15m
    [test-wasm] test matrix 3m              :nw2, 00:15, 3m
    [test] required 6m                                              :crit, nt1, 00:00, 6m
    [test] check-changes 2s parallel                                :nt2, 00:00, 1m
    [differential-tests] per-target cache hits ~1m 30s              :crit, nt3, 00:06, 2m
    [differential-tests] windows-x86_64 compile and hash 19m        :crit, nt4, 00:08, 19m
    [differential-tests] linux-x86_64 compile and hash 16m          :nt5, 00:08, 16m
    [differential-tests] macos-arm64 compile and hash 13m           :nt6, 00:08, 13m
    [differential-tests] run-e2e-tests 16m                          :nt7, 00:08, 16m
    [differential-tests] compare-hashes 2m                          :crit, nt8, 00:27, 2m
    [hardhat] use-hardhat parallel 1m                               :nt9, 00:07, 1m
```

## Measurements

| Metric | Before | Now | Improvement |
|---|---|---|---|
| **PR CI wall-clock** | 70m 15s | 28m 47s | **−41m 28s (−59%)** |
| `test` job (required check) | 12m 10s | 6m 17s | −5m 53s (faster LLVM
download) |
| `compile-and-hash` build phase | ~7m 30s (waiting on release builds) |
~30s (builds already available) to ~1m 30s (if waiting for macos) |
−6-7m (per-target build split + faster LLVM download) |
| `run-e2e-tests` build phase | ~7m 30s (waiting on release builds) |
~30s (`linux-x86_64` already available) | −7m (per-target build split) |
| Longest `compile-and-hash` job | 44m 05s (`macos-x86_64`) | 19m 08s
(`windows-x86_64`) | −24m 57s (`macos-x86_64` excluded on PRs) |
| `compile-and-hash` matrix start time | 20m 13s | 7m 54s | −12m 19s
(per-target build split + faster LLVM download) |
| `run-e2e-tests` start time | 21m 50s | 7m 36s | −14m 14s (per-target
build split + faster LLVM download) |
| `run-e2e-tests` duration | 43m 28s | 16m 22s | −27m 06s (concurrency
bump + flakiness fix) |

## Changes

| Change | Before | Now |
|---|---|---|
| **Per-target build sub-workflows** | <ul><li>Getting a reusable build
depended on all builds completing.</li><li>Even if e.g. a macOS build is
cached, the waiting workflow with macOS runners could be queued for a
long time just to get the status and cache of the other workflow, since
macOS runners are more scarce than e.g. Ubuntu.</li></ul> |
<ul><li>Split umbrella `reusable-build.yml` into
`reusable-build-{linux,macos,windows,wasm}.yml`.</li><li>Consumers can
wait on a specific target and start earlier instead of blocking on the
whole matrix.</li><li>E.g. E2E and the compile-and-hash matrix start
earlier (gate only on the targets needed).</li></ul> |
| **Bottleneck macOS Intel only running on `main`** | macOS Intel
runners are 2-3× slower than macOS ARM for the contract compilation
tests. Ran on each PR, being the bottleneck. | This build is now
excluded from the matrix for PR runs, and only included for pushes to
`main`. |
| **E2E tests use higher concurrency** | `run-e2e-tests` duration:
~43min.</li></ul> | <ul><li>Uses higher number of concurrent tasks, made
possible by retester flakiness fix.</li><li>`run-e2e-tests` duration:
~16min.</li></ul> |
| **Faster LLVM downloads** | Building resolc took ~8-13min (~16 min on
macOS intel). | `get-llvm/action.yml` uses more efficient version
detection. Building resolc now takes ~2min (~4-7 min on macOS intel). |
| **Wasm tests use cached artifacts** | `test-wasm.yml` ran its own
duplicate build. | `test-wasm.yml` uses the reusable Wasm build. |
| **Skip unnecessary polkadot-sdk package** | For E2E tests,
`polkadot-omni-node` was unconditionally downloaded (~3-4min). | Only
`pallet-revive-eth-rpc` and `revive-dev-node` are downloaded from the
cache. |
| **Cache `report-processor`** | Only `retester` was cached. |
`report-processor` is cached for the compilations and export hashes
jobs. |
| **Hardhat unblocked from differential tests** | Started after the
differential tests succeeded in order to reuse the Linux build. | Starts
as soon as the required `test` job succeeds, using the reusable Linux
build. |
| **Conditionally skip workflows** | <ul><li>Some workflows
conditionally skipped for md-only changes.</li><li>Tooling-only changes
also ran e.g. `test-wasm.yml` and `differential-tests.yml`.</ul></li> |
<ul><li>Most workflows are skipped for doc-only
updates.</li><li>Tooling-only updates trigger only the respective
tooling test (Hardhat), apart from the required `test`
job.</li><li>Differential tests are skipped for js-only
updates.</li></ul> |
| **Miscellaneous** | <ul><li>Used actions running on soon-deprecated
Node 20.</li><li>Difficult to debug Playwright `test-wasm`
failures.</li></ul> | <ul><li>Upgraded actions that used Node
20.</li><li>Added Playwright debug traces uploaded on `test-wasm`
failures.</li></ul> |

## Resolved Issues

Closes #533
This commit is contained in:
LJ authored and GitHub committed 2026-06-05 09:59:17 +02:00
1 parent 3a20436ddb
commit 229ce55bd6
19 files changed
+738 -526

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+65 -27
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@@ -4,35 +4,68 @@ on:
workflow_call:
env:
IS_PUSH_TO_MAIN: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
# The compiler modes to use for compilation by retester.
MODES: "Y M0 S+, Y M3 S+, Y Mz S+"
SOLC_VERSION: "0.8.35"
jobs:
build:
uses: ./.github/workflows/reusable-build.yml
build-linux:
uses: ./.github/workflows/reusable-build-linux.yml
with:
is_release: false
retention_days: 1
build-macos:
uses: ./.github/workflows/reusable-build-macos.yml
with:
retention_days: 1
build-windows:
uses: ./.github/workflows/reusable-build-windows.yml
with:
retention_days: 1
build-matrix:
runs-on: ubuntu-24.04
outputs:
entries: ${{ steps.matrix.outputs.entries }}
steps:
- name: Build Matrix
id: matrix
run: |
entries='[
{
"platform": "linux-x86_64",
"target": "x86_64-unknown-linux-musl",
"runner": "ubuntu-24.04"
},
{
"platform": "macos-arm64",
"target": "universal-apple-darwin",
"runner": "macos-15"
},
${{ env.IS_PUSH_TO_MAIN == 'true' && '{
"platform": "macos-x86_64",
"target": "universal-apple-darwin",
"runner": "macos-15-intel"
},' || '' }}
{
"platform": "windows-x86_64",
"target": "x86_64-pc-windows-msvc",
"runner": "windows-2022"
}
]'
echo "Matrix:"
jq . <<< "$entries"
echo "entries=$(jq -c . <<< "$entries")" >> "$GITHUB_OUTPUT"
compile-and-export-hashes-native:
needs: build
needs: [build-matrix, build-linux, build-macos, build-windows]
strategy:
fail-fast: false
matrix:
include:
- platform: linux-x86_64
target: x86_64-unknown-linux-musl
runner: ubuntu-24.04
- platform: macos-arm64
target: universal-apple-darwin
runner: macos-15
- platform: macos-x86_64
target: universal-apple-darwin
runner: macos-15-intel
- platform: windows-x86_64
target: x86_64-pc-windows-msvc
runner: windows-2022
include: ${{ fromJSON(needs.build-matrix.outputs.entries) }}
runs-on: ${{ matrix.runner }}
steps:
# For some deeply nested contracts in `resolc-compiler-tests`, Windows
@@ -42,13 +75,13 @@ jobs:
run: git config --system core.longpaths true
- name: Checkout revive
uses: actions/checkout@v4
uses: actions/checkout@v6
with:
path: revive
submodules: recursive
- name: Download Binary
uses: actions/download-artifact@v4
uses: actions/download-artifact@v7
with:
name: resolc-${{ matrix.target }}
path: resolc-bin
@@ -81,7 +114,7 @@ jobs:
runs-on: ubuntu-24.04
steps:
- name: Checkout revive
uses: actions/checkout@v4
uses: actions/checkout@v6
with:
path: revive
submodules: true
@@ -90,14 +123,18 @@ jobs:
uses: ./revive/revive-differential-tests/.github/actions/compare-bytecode-hashes
with:
revive-differential-tests-path: revive/revive-differential-tests
hash-artifact-names: "hashes-linux-x86_64, hashes-macos-arm64, hashes-macos-x86_64, hashes-windows-x86_64"
hash-artifact-names: >-
hashes-linux-x86_64,
hashes-macos-arm64,
${{ env.IS_PUSH_TO_MAIN == 'true' && 'hashes-macos-x86_64,' || '' }}
hashes-windows-x86_64
modes: ${{ env.MODES }}
upload-artifact-name: hash-comparison-result
run-e2e-tests:
needs: build
needs: build-linux
runs-on: parity-large
timeout-minutes: 75
timeout-minutes: 60
env:
# Commit SHA that produced the polkadot-sdk crate pinned in Cargo.toml,
# obtained from the crate's .cargo_vcs_info.json via:
@@ -107,13 +144,13 @@ jobs:
RUSTFLAGS: "-Awarnings"
steps:
- name: Checkout revive
uses: actions/checkout@v4
uses: actions/checkout@v6
with:
path: revive
submodules: recursive
- name: Download Binary
uses: actions/download-artifact@v4
uses: actions/download-artifact@v7
with:
name: resolc-x86_64-unknown-linux-musl
path: ./resolc-bin
@@ -123,7 +160,7 @@ jobs:
run: chmod +x ./resolc-bin/resolc-x86_64-unknown-linux-musl
- name: Checkout Polkadot SDK
uses: actions/checkout@v4
uses: actions/checkout@v6
with:
repository: paritytech/polkadot-sdk
ref: ${{ env.POLKADOT_SDK_REF }}
@@ -176,4 +213,5 @@ jobs:
needs: [compare-hashes, run-e2e-tests]
runs-on: ubuntu-24.04
steps:
- run: echo "All jobs finished"
- name: Finish
run: echo "All jobs finished"