Τώρα που καταλαβαίνετε τα βασικά στοιχεία του k6 και των δοκιμών απόδοσης, ήρθε η ώρα να θέσετε αυτή τη γνώση σε εφαρμογή. Αυτό το άρθρο σας βαδίζει μέσα από τη συγγραφή πραγματικών δοκιμών, την ενσωμάτωση τους σε αγωγούς CI / CD, και χρησιμοποιώντας εργαλεία προφίλ για τον εντοπισμό και τον καθορισμό των σημείων συμφόρησης των επιδόσεων.
Αυτό είναι Μέρος 2 μιας σειράς δύο μερών για τη δοκιμή φορτίου με k6:
Εάν δεν έχετε διαβάσει το Μέρος 1, ξεκινήστε εκεί για να κατανοήσετε τα βασικά k6, την εγκατάσταση και τους τύπους δοκιμών πριν από την κατάδυση στην εφαρμογή.
Πριν από την εκτέλεση των δοκιμών k6, ας ρυθμίσουμε το MinimalBlog για τη δοκιμή:
Χρήση του έργου demo:
cd Mostlylucid.MinimalBlog.Demo
dotnet run
Ή χρησιμοποιώντας Docker:
docker run -d -p 5000:8080 \
-v $(pwd)/Markdown:/app/Markdown \
--name minimalblog-test \
scottgal/minimalblog:latest
Για ακριβείς δοκιμές επιδόσεων, πάντα να χτίζεται σε λειτουργία απελευθέρωσης:
dotnet run --configuration Release
Διαφορετικές λειτουργίες αποσφαλμάτωσης εναντίον απελευθέρωσης:
Λειτουργία αποσφαλμάτωσης
|--------|------------|--------------|
| Βελτιστοποιήσεις Η πλήρης βελτιστοποίηση του JIT ενεργοποιήθηκε.
| Είσοδος Μικρή μέθοδος επιθετικής συγκόλλησης
| Κωδικός νεκρού Διατηρημένος
| Σύμβολα αποσφαλμάτωσης Πλήρες PDB, επιπλέον μεταδεδομένα, minimal ή κανένα
| Δέσμες | Debug.Assert() Ενεργός ~ Συγκολλημένος έξω ~
| Έλεγχος ορίων Περισσότεροι έλεγχοι ασφαλείας Βελτιστοποιημένος μακριά όπου ασφαλής
| Τυπικά γενικά 2-10x πιο αργή απόδοση
Γιατί η λειτουργία αποσφαλμάτωσης δίνει παραπλανητικά αποτελέσματα:
Debug.Assert() δηλώσεις εκτελούνται, προσθέτοντας ελέγχους που η παραγωγή δεν θα έχειΠότε να χρησιμοποιήσετε τη λειτουργία αποσφαλμάτωσης για τη δοκιμή:
Συνιστώμενη ροή εργασίας:
# 1. Develop and debug with Debug mode
dotnet run # Debug mode (default)
# 2. Validate functionality works
k6 run --vus 1 --duration 10s smoke-test.js
# 3. Switch to Release for actual performance testing
dotnet run -c Release
# 4. Run full load tests
k6 run load-test.js
Κανόνας του αντίχειρα: Εάν μετράτε την απόδοση, χρησιμοποιήστε το Release. Αν φτιάχνετε σφάλματα, χρησιμοποιήστε το Debug.
Δημιουργήστε αρκετές θέσεις markdown για να δοκιμάσετε με:
# Create test posts directory
mkdir -p TestMarkdown
# Create sample posts
for i in {1..10}; do
cat > TestMarkdown/test-post-$i.md <<EOF
# Test Post $i
This is test post number $i with some **bold** text and *italic* text.
## Sample Content
- Item 1
- Item 2
- Item 3
\`\`\`csharp
public class Test {
public int Value { get; set; }
}
\`\`\`
EOF
done
mkdir k6-tests
cd k6-tests
Τώρα είμαστε έτοιμοι να γράψουμε τις εξετάσεις μας!
Ας ξεκινήσουμε με ένα απλό τεστ καπνού για να επιβεβαιώσουμε τη βασική λειτουργικότητα:
Αρχείο: smoke-test.js
import http from 'k6/http';
import { check, sleep } from 'k6';
export const options = {
vus: 1,
duration: '30s',
thresholds: {
http_req_duration: ['p(95)<500'], // 95% of requests should be below 500ms
http_req_failed: ['rate<0.01'], // Less than 1% errors
},
};
const BASE_URL = __ENV.BASE_URL || 'http://localhost:5000';
export default function() {
// Test homepage
let response = http.get(`${BASE_URL}/`);
check(response, {
'homepage status is 200': (r) => r.status === 200,
'homepage has content': (r) => r.body.length > 0,
'homepage response time OK': (r) => r.timings.duration < 500,
});
sleep(1);
// Test a single post
response = http.get(`${BASE_URL}/post/test-post-1`);
check(response, {
'post status is 200': (r) => r.status === 200,
'post has content': (r) => r.body.length > 0,
'post contains title': (r) => r.body.includes('Test Post 1'),
});
sleep(1);
// Test categories page
response = http.get(`${BASE_URL}/categories`);
check(response, {
'categories status is 200': (r) => r.status === 200,
'categories has content': (r) => r.body.length > 0,
});
sleep(1);
// Test category filter
response = http.get(`${BASE_URL}/category/Testing`);
check(response, {
'category filter status is 200': (r) => r.status === 200,
'category has posts': (r) => r.body.includes('Test Post'),
});
}
Εκτέλεση της δοκιμής:
k6 run smoke-test.js
Αναμενόμενη έξοδος:
✓ homepage status is 200
✓ homepage has content
✓ homepage response time OK
✓ post status is 200
✓ post has content
✓ post contains title
✓ categories status is 200
✓ categories has content
✓ category filter status is 200
✓ category has posts
checks.........................: 100.00% ✓ 300 ✗ 0
data_received..................: 1.2 MB 40 kB/s
data_sent......................: 15 kB 500 B/s
http_req_duration..............: avg=45ms min=12ms med=38ms max=156ms p(95)=98ms
http_reqs......................: 120 4/s
Η απόδοση του MinimalBlog εξαρτάται σε μεγάλο βαθμό από το caching. Ας επιβεβαιώσουμε ότι λειτουργεί:
Αρχείο: cache-test.js
import http from 'k6/http';
import { check, group } from 'k6';
export const options = {
vus: 1,
iterations: 10,
};
const BASE_URL = __ENV.BASE_URL || 'http://localhost:5000';
export default function() {
group('Memory Cache Test - First Request', () => {
const start = Date.now();
const response = http.get(`${BASE_URL}/post/test-post-1`);
const duration = Date.now() - start;
check(response, {
'first request successful': (r) => r.status === 200,
});
console.log(`First request: ${duration}ms`);
});
group('Memory Cache Test - Cached Request', () => {
const start = Date.now();
const response = http.get(`${BASE_URL}/post/test-post-1`);
const duration = Date.now() - start;
check(response, {
'cached request successful': (r) => r.status === 200,
'cached request is faster': (r) => r.timings.duration < 100,
});
console.log(`Cached request: ${duration}ms`);
});
group('Output Cache Headers', () => {
const response = http.get(`${BASE_URL}/post/test-post-1`);
check(response, {
'has cache headers': (r) => r.headers['Cache-Control'] !== undefined,
'output cache working': (r) => {
const age = r.headers['Age'];
return age !== undefined && parseInt(age) >= 0;
},
});
console.log(`Cache-Control: ${response.headers['Cache-Control']}`);
console.log(`Age: ${response.headers['Age']}`);
});
}
Εκτέλεση της δοκιμής:
k6 run cache-test.js
Αυτή η δοκιμή θα σας δείξει:
Τώρα ας δοκιμάσουμε με ρεαλιστικό φορτίο:
Αρχείο: load-test.js
import http from 'k6/http';
import { check, sleep } from 'k6';
import { Rate } from 'k6/metrics';
// Custom metrics
const errorRate = new Rate('errors');
export const options = {
stages: [
{ duration: '2m', target: 10 }, // Ramp up to 10 users
{ duration: '5m', target: 10 }, // Stay at 10 users
{ duration: '2m', target: 0 }, // Ramp down to 0
],
thresholds: {
http_req_duration: ['p(95)<300'], // 95% under 300ms
http_req_failed: ['rate<0.01'], // Less than 1% errors
errors: ['rate<0.1'], // Less than 10% errors
},
};
const BASE_URL = __ENV.BASE_URL || 'http://localhost:5000';
const scenarios = [
{ weight: 50, path: '/' }, // 50% homepage
{ weight: 30, path: '/post/test-post-1' }, // 30% specific post
{ weight: 10, path: '/categories' }, // 10% categories
{ weight: 10, path: '/category/Testing' }, // 10% category filter
];
function weightedChoice(scenarios) {
const total = scenarios.reduce((sum, s) => sum + s.weight, 0);
let random = Math.random() * total;
for (const scenario of scenarios) {
random -= scenario.weight;
if (random <= 0) return scenario;
}
return scenarios[0];
}
export default function() {
const scenario = weightedChoice(scenarios);
const response = http.get(`${BASE_URL}${scenario.path}`);
const success = check(response, {
'status is 200': (r) => r.status === 200,
'response time OK': (r) => r.timings.duration < 500,
'has content': (r) => r.body.length > 0,
});
errorRate.add(!success);
sleep(Math.random() * 2 + 1); // Random sleep 1-3 seconds
}
Εκτέλεση της δοκιμής:
k6 run load-test.js
Ερμηνευτικά αποτελέσματα:
scenarios: (100.00%) 1 scenario, 10 max VUs, 9m30s max duration
default: 2m00s ramp-up, 5m00s plateau, 2m00s ramp-down
✓ status is 200
✓ response time OK
✓ has content
checks.........................: 100.00% ✓ 3450 ✗ 0
data_received..................: 12 MB 22 kB/s
data_sent......................: 132 kB 244 B/s
errors.........................: 0.00% ✓ 0 ✗ 1150
http_req_duration..............: avg=42ms min=8ms med=35ms max=245ms p(95)=86ms p(99)=156ms
http_reqs......................: 1150 2.12/s
iteration_duration.............: avg=2.1s min=1.0s med=2.0s max=3.4s
vus............................: 10 min=0 max=10
Μετρητές κλειδιών για παρακολούθηση:
Ας βρούμε το σημείο διακοπής του MinimalBlog:
Αρχείο: stress-test.js
import http from 'k6/http';
import { check, sleep } from 'k6';
export const options = {
stages: [
{ duration: '2m', target: 10 }, // Normal load
{ duration: '2m', target: 50 }, // Increase to 50
{ duration: '2m', target: 100 }, // Stress at 100
{ duration: '2m', target: 200 }, // High stress at 200
{ duration: '3m', target: 0 }, // Recovery
],
thresholds: {
http_req_duration: ['p(99)<3000'], // 99% under 3s even under stress
},
};
const BASE_URL = __ENV.BASE_URL || 'http://localhost:5000';
export default function() {
const responses = http.batch([
['GET', `${BASE_URL}/`],
['GET', `${BASE_URL}/post/test-post-1`],
['GET', `${BASE_URL}/post/test-post-2`],
['GET', `${BASE_URL}/categories`],
]);
responses.forEach((response, index) => {
check(response, {
[`request ${index} status is 200`]: (r) => r.status === 200,
});
});
sleep(0.5);
}
export function handleSummary(data) {
return {
'stress-test-summary.json': JSON.stringify(data),
stdout: textSummary(data, { indent: ' ', enableColors: true }),
};
}
Εκτέλεση της δοκιμής:
k6 run stress-test.js
Πρόσεχε:
Δοκιμάστε ξαφνικά καρφιά κυκλοφορίας (όπως εμφανίζονται σε Reddit ή Hacker News):
Αρχείο: spike-test.js
import http from 'k6/http';
import { check } from 'k6';
export const options = {
stages: [
{ duration: '1m', target: 10 }, // Normal traffic
{ duration: '30s', target: 200 }, // Sudden spike!
{ duration: '3m', target: 200 }, // Sustained spike
{ duration: '1m', target: 10 }, // Back to normal
{ duration: '1m', target: 0 }, // Ramp down
],
thresholds: {
http_req_duration: ['p(95)<1000'], // Allow higher latency during spike
http_req_failed: ['rate<0.05'], // Allow 5% errors during spike
},
};
const BASE_URL = __ENV.BASE_URL || 'http://localhost:5000';
export default function() {
const response = http.get(`${BASE_URL}/`);
check(response, {
'status is 200 or 503': (r) => r.status === 200 || r.status === 503,
});
}
Εκτέλεση της δοκιμής:
k6 run spike-test.js
Η παρούσα δοκιμή επαληθεύει:
Δοκιμή μακράς λειτουργίας για την ανίχνευση διαρροών μνήμης ή εξάντληση πόρων:
Αρχείο: soak-test.js
import http from 'k6/http';
import { check, sleep } from 'k6';
export const options = {
stages: [
{ duration: '2m', target: 20 }, // Ramp up
{ duration: '3h', target: 20 }, // Stay at 20 for 3 hours
{ duration: '2m', target: 0 }, // Ramp down
],
thresholds: {
http_req_duration: ['p(95)<500'],
http_req_failed: ['rate<0.01'],
},
};
const BASE_URL = __ENV.BASE_URL || 'http://localhost:5000';
export default function() {
const response = http.get(`${BASE_URL}/post/test-post-${Math.floor(Math.random() * 10) + 1}`);
check(response, {
'status is 200': (r) => r.status === 200,
'response time stable': (r) => r.timings.duration < 500,
});
sleep(2);
}
Εκτέλεση της δοκιμής:
k6 run soak-test.js
Σημαντικό: Παρακολουθήστε τους πόρους του συστήματος κατά τις δοκιμές εμποτισμού:
# In another terminal
watch -n 5 'dotnet-counters ps | grep -i minimal'
# Or use top/htop
htop -p $(pgrep -f MinimalBlog)
Πρόσεχε:
Προσομοίωση πραγματικής συμπεριφοράς χρήστη:
Αρχείο: user-journey-test.js
import http from 'k6/http';
import { check, group, sleep } from 'k6';
import { htmlReport } from 'https://raw.githubusercontent.com/benc-uk/k6-reporter/main/dist/bundle.js';
export const options = {
vus: 10,
duration: '5m',
thresholds: {
'group_duration{group:::01_homepage}': ['avg<500'],
'group_duration{group:::02_browse_posts}': ['avg<500'],
'group_duration{group:::03_categories}': ['avg<500'],
},
};
const BASE_URL = __ENV.BASE_URL || 'http://localhost:5000';
export default function() {
// Simulate a real user journey
group('01_homepage', () => {
const response = http.get(`${BASE_URL}/`);
check(response, {
'homepage loaded': (r) => r.status === 200,
'homepage has posts': (r) => r.body.includes('Test Post'),
});
sleep(Math.random() * 3 + 2); // Read homepage 2-5 seconds
});
group('02_browse_posts', () => {
// User clicks on a post
let response = http.get(`${BASE_URL}/post/test-post-1`);
check(response, {
'post loaded': (r) => r.status === 200,
'post has content': (r) => r.body.length > 500,
});
sleep(Math.random() * 20 + 10); // Read post 10-30 seconds
// User clicks another post
response = http.get(`${BASE_URL}/post/test-post-2`);
check(response, {
'second post loaded': (r) => r.status === 200,
});
sleep(Math.random() * 15 + 5); // Read second post 5-20 seconds
});
group('03_categories', () => {
// User explores categories
const response = http.get(`${BASE_URL}/categories`);
check(response, {
'categories loaded': (r) => r.status === 200,
});
sleep(2);
// User clicks a category
const categoryResponse = http.get(`${BASE_URL}/category/Testing`);
check(categoryResponse, {
'category posts loaded': (r) => r.status === 200,
'category has posts': (r) => r.body.includes('Test Post'),
});
sleep(Math.random() * 10 + 5); // Browse category 5-15 seconds
});
}
export function handleSummary(data) {
return {
'user-journey-report.html': htmlReport(data),
};
}
Εκτέλεση της δοκιμής:
k6 run user-journey-test.js
Αυτό παράγει μια έκθεση HTML: user-journey-report.html
Εάν έχετε ενεργοποιήσει το MetaWeblog, δοκιμάστε το επίσης:
Αρχείο: metaweblog-test.js
import http from 'k6/http';
import { check } from 'k6';
import encoding from 'k6/encoding';
export const options = {
vus: 1,
iterations: 10,
};
const BASE_URL = __ENV.BASE_URL || 'http://localhost:5000';
const USERNAME = __ENV.USERNAME || 'admin';
const PASSWORD = __ENV.PASSWORD || 'changeme';
function createXmlRpcRequest(methodName, params) {
return `<?xml version="1.0"?>
<methodCall>
<methodName>${methodName}</methodName>
<params>
${params}
</params>
</methodCall>`;
}
export default function() {
// Test getRecentPosts
const recentPostsXml = createXmlRpcRequest('blogger.getRecentPosts', `
<param><value><string>0</string></value></param>
<param><value><string>${USERNAME}</string></value></param>
<param><value><string>${PASSWORD}</string></value></param>
<param><value><int>10</int></value></param>
`);
const response = http.post(`${BASE_URL}/metaweblog`, recentPostsXml, {
headers: { 'Content-Type': 'text/xml' },
});
check(response, {
'MetaWeblog API responds': (r) => r.status === 200,
'MetaWeblog returns XML': (r) => r.body.includes('<?xml'),
'MetaWeblog has methodResponse': (r) => r.body.includes('methodResponse'),
});
}
Εκτέλεση της δοκιμής:
k6 run -e USERNAME=admin -e PASSWORD=yourpassword metaweblog-test.js
Η πιο ισχυρή χρήση του k6 σε CI/ CD είναι ως ένα Πύλη ποιότητας Εδώ είναι ο τρόπος εφαρμογής ολοκληρωμένων δοκιμών k6 σε δράσεις GitHub.
Ας ξεκινήσουμε με μια βασική ροή εργασίας που τρέχει σε κάθε αίτηση έλξης και μπλοκ συγχώνευσης αν οι δοκιμές αποτύχουν.
Δημιουργία .github/workflows/k6-pr-check.yml:
name: k6 Performance Check
on:
pull_request:
branches: [ main ]
jobs:
performance-check:
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Setup .NET
uses: actions/setup-dotnet@v4
with:
dotnet-version: '9.0.x'
- name: Setup k6
run: |
sudo gpg -k
sudo gpg --no-default-keyring --keyring /usr/share/keyrings/k6-archive-keyring.gpg \
--keyserver hkp://keyserver.ubuntu.com:80 \
--recv-keys C5AD17C747E3415A3642D57D77C6C491D6AC1D69
echo "deb [signed-by=/usr/share/keyrings/k6-archive-keyring.gpg] https://dl.k6.io/deb stable main" | \
sudo tee /etc/apt/sources.list.d/k6.list
sudo apt-get update
sudo apt-get install k6
- name: Create test data
run: |
mkdir -p TestMarkdown
for i in {1..10}; do
cat > TestMarkdown/test-post-$i.md <<EOF
# Test Post $i
This is test post $i with **bold** and *italic* text.
\`\`\`csharp
public class Test { public int Value { get; set; } }
\`\`\`
EOF
done
- name: Build MinimalBlog
run: |
cd Mostlylucid.MinimalBlog.Demo
dotnet build --configuration Release
- name: Start MinimalBlog
run: |
cd Mostlylucid.MinimalBlog.Demo
dotnet run --configuration Release &
echo $! > app.pid
# Wait for app to be ready
timeout 60 bash -c 'until curl -sf http://localhost:5000 > /dev/null; do
echo "Waiting for app..."
sleep 2
done'
echo "- App is ready!"
- name: Run Smoke Test
id: smoke-test
run: |
k6 run --out json=smoke-results.json k6-tests/smoke-test.js
echo "smoke-test-passed=true" >> $GITHUB_OUTPUT
- name: Run Load Test
id: load-test
run: |
k6 run --out json=load-results.json k6-tests/load-test.js
echo "load-test-passed=true" >> $GITHUB_OUTPUT
- name: Run Cache Test
id: cache-test
run: |
k6 run --out json=cache-results.json k6-tests/cache-test.js
echo "cache-test-passed=true" >> $GITHUB_OUTPUT
- name: Stop MinimalBlog
if: always()
run: |
if [ -f Mostlylucid.MinimalBlog.Demo/app.pid ]; then
kill $(cat Mostlylucid.MinimalBlog.Demo/app.pid) || true
fi
- name: Upload Test Results
if: always()
uses: actions/upload-artifact@v4
with:
name: k6-test-results
path: |
*-results.json
*.html
retention-days: 30
- name: Check Test Results
if: always()
run: |
echo "## k6 Performance Test Results" >> $GITHUB_STEP_SUMMARY
echo "" >> $GITHUB_STEP_SUMMARY
if [ "${{ steps.smoke-test.outputs.smoke-test-passed }}" == "true" ]; then
echo "- Smoke Test: PASSED" >> $GITHUB_STEP_SUMMARY
else
echo "- Smoke Test: FAILED" >> $GITHUB_STEP_SUMMARY
fi
if [ "${{ steps.load-test.outputs.load-test-passed }}" == "true" ]; then
echo "- Load Test: PASSED" >> $GITHUB_STEP_SUMMARY
else
echo "- Load Test: FAILED" >> $GITHUB_STEP_SUMMARY
fi
if [ "${{ steps.cache-test.outputs.cache-test-passed }}" == "true" ]; then
echo "- Cache Test: PASSED" >> $GITHUB_STEP_SUMMARY
else
echo "- Cache Test: FAILED" >> $GITHUB_STEP_SUMMARY
fi
Βασικά χαρακτηριστικά:
sequenceDiagram
participant PR as Pull Request
participant GHA as GitHub Actions
participant App as MinimalBlog
participant k6 as k6 Tests
PR->>GHA: Trigger workflow
GHA->>GHA: Setup .NET & k6
GHA->>GHA: Create test data
GHA->>App: Build & Start
App-->>GHA: App ready
GHA->>k6: Run smoke test
k6-->>GHA: Results
GHA->>k6: Run load test
k6-->>GHA: Results
GHA->>k6: Run cache test
k6-->>GHA: Results
GHA->>App: Stop
alt Tests Pass
GHA->>PR: Mark as success
else Tests Fail
GHA->>PR: Block merge
end
Δημιουργία .github/workflows/k6-pr-comment.yml για να δημοσιεύσετε τα αποτελέσματα ως σχόλια PR:
name: k6 Performance with PR Comment
on:
pull_request:
branches: [ main ]
permissions:
pull-requests: write
contents: read
jobs:
performance-test:
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Setup .NET
uses: actions/setup-dotnet@v4
with:
dotnet-version: '9.0.x'
- name: Setup k6
uses: grafana/setup-k6-action@v1
- name: Create test data
run: |
mkdir -p TestMarkdown
for i in {1..10}; do
cat > TestMarkdown/test-post-$i.md <<EOF
# Test Post $i
Test content for post $i.
EOF
done
- name: Build and Start App
run: |
cd Mostlylucid.MinimalBlog.Demo
dotnet build -c Release
dotnet run -c Release > app.log 2>&1 &
APP_PID=$!
echo $APP_PID > app.pid
timeout 60 bash -c 'until curl -sf http://localhost:5000; do sleep 2; done'
- name: Run k6 Tests
id: k6-test
run: |
# Run tests and capture output
k6 run --out json=results.json k6-tests/load-test.js > k6-output.txt 2>&1 || true
# Parse results
if grep -q "✓" k6-output.txt; then
echo "tests-passed=true" >> $GITHUB_OUTPUT
else
echo "tests-passed=false" >> $GITHUB_OUTPUT
fi
# Extract key metrics
P95=$(grep "http_req_duration" k6-output.txt | grep -oP 'p\(95\)=\K[0-9.]+' || echo "N/A")
RPS=$(grep "http_reqs" k6-output.txt | grep -oP '\d+\.\d+/s' || echo "N/A")
ERRORS=$(grep "http_req_failed" k6-output.txt | grep -oP '\d+\.\d+%' || echo "0%")
echo "p95=${P95}" >> $GITHUB_OUTPUT
echo "rps=${RPS}" >> $GITHUB_OUTPUT
echo "errors=${ERRORS}" >> $GITHUB_OUTPUT
- name: Comment PR
uses: actions/github-script@v7
if: always()
with:
script: |
const fs = require('fs');
const output = fs.readFileSync('k6-output.txt', 'utf8');
const testsPassed = '${{ steps.k6-test.outputs.tests-passed }}' === 'true';
const icon = testsPassed ? 'PASS' : 'FAIL';
const status = testsPassed ? 'PASSED' : 'FAILED';
const comment = `## ${icon} k6 Performance Test Results
**Status:** ${status}
### Key Metrics
| Metric | Value |
|--------|-------|
| P95 Response Time | ${{ steps.k6-test.outputs.p95 }}ms |
| Requests/sec | ${{ steps.k6-test.outputs.rps }} |
| Error Rate | ${{ steps.k6-test.outputs.errors }} |
### Thresholds
- P95 < 300ms
- Error rate < 1%
<details>
<summary>Full k6 Output</summary>
\`\`\`
${output}
\`\`\`
</details>
[View full test results](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})
`;
github.rest.issues.createComment({
issue_number: context.issue.number,
owner: context.repo.owner,
repo: context.repo.repo,
body: comment
});
- name: Stop App
if: always()
run: |
[ -f Mostlylucid.MinimalBlog.Demo/app.pid ] && \
kill $(cat Mostlylucid.MinimalBlog.Demo/app.pid) || true
- name: Upload Artifacts
if: always()
uses: actions/upload-artifact@v4
with:
name: k6-results
path: |
results.json
k6-output.txt
Mostlylucid.MinimalBlog.Demo/app.log
Αυτή η ροή εργασίας:
Δημιουργία .github/workflows/k6-baseline.yml για την ανίχνευση παλινδρόμησης των επιδόσεων:
name: Performance Regression Check
on:
pull_request:
branches: [ main ]
jobs:
regression-check:
runs-on: ubuntu-latest
steps:
- name: Checkout PR code
uses: actions/checkout@v4
- name: Setup .NET
uses: actions/setup-dotnet@v4
with:
dotnet-version: '9.0.x'
- name: Setup k6
uses: grafana/setup-k6-action@v1
- name: Create test data
run: |
mkdir -p TestMarkdown
for i in {1..20}; do
echo "# Test Post $i" > TestMarkdown/test-$i.md
echo "" >> TestMarkdown/test-$i.md
echo '' >> TestMarkdown/test-$i.md
echo "Test content $i" >> TestMarkdown/test-$i.md
done
- name: Test PR Branch
run: |
cd Mostlylucid.MinimalBlog.Demo
dotnet build -c Release
dotnet run -c Release &
APP_PID=$!
timeout 60 bash -c 'until curl -sf http://localhost:5000; do sleep 2; done'
# Run test and save results
k6 run --summary-export=pr-results.json k6-tests/load-test.js
kill $APP_PID
sleep 5
- name: Checkout main branch
uses: actions/checkout@v4
with:
ref: main
path: baseline
- name: Test Baseline (main branch)
run: |
cd baseline/Mostlylucid.MinimalBlog.Demo
dotnet build -c Release
dotnet run -c Release &
APP_PID=$!
timeout 60 bash -c 'until curl -sf http://localhost:5000; do sleep 2; done'
# Run test and save results
k6 run --summary-export=baseline-results.json ../k6-tests/load-test.js
kill $APP_PID
- name: Compare Results
run: |
# Extract P95 from both runs
PR_P95=$(jq '.metrics.http_req_duration.values["p(95)"]' pr-results.json)
BASE_P95=$(jq '.metrics.http_req_duration.values["p(95)"]' baseline/baseline-results.json)
# Calculate percentage change
CHANGE=$(echo "scale=2; (($PR_P95 - $BASE_P95) / $BASE_P95) * 100" | bc)
echo "## Performance Comparison" >> $GITHUB_STEP_SUMMARY
echo "" >> $GITHUB_STEP_SUMMARY
echo "| Branch | P95 Response Time |" >> $GITHUB_STEP_SUMMARY
echo "|--------|-------------------|" >> $GITHUB_STEP_SUMMARY
echo "| main (baseline) | ${BASE_P95}ms |" >> $GITHUB_STEP_SUMMARY
echo "| PR | ${PR_P95}ms |" >> $GITHUB_STEP_SUMMARY
echo "| Change | ${CHANGE}% |" >> $GITHUB_STEP_SUMMARY
echo "" >> $GITHUB_STEP_SUMMARY
# Fail if performance degrades by more than 20%
if (( $(echo "$CHANGE > 20" | bc -l) )); then
echo "- Performance degraded by ${CHANGE}%" >> $GITHUB_STEP_SUMMARY
echo "::error::Performance regression detected: ${CHANGE}% slower than baseline"
exit 1
else
echo "- Performance acceptable" >> $GITHUB_STEP_SUMMARY
fi
Αυτή η ροή εργασίας:
graph TD
A[PR Submitted] --> B[Checkout PR Code]
B --> C[Test PR Branch]
C --> D[Checkout main Branch]
D --> E[Test Baseline]
E --> F{Calculate<br/>Difference}
F -->|>20% Slower| G[FAIL Build]
F -->|<20% Change| H[PASS Build]
G --> I[Block Merge]
H --> J[Allow Merge]
style G stroke:#ff6b6b
style H stroke:#51cf66
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Χρήση κατάλληλων ορίων
javascript // Too strict for CI thresholds: { http_req_duration: ['p(95)<100'] }
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