zitadel/apps/docs/content/apis/benchmarks/v4/add_session/index.mdx

---
title: create session benchmark of zitadel v4
sidebar_label: create session
---

import OutputSource from "./output.json";
import { BenchmarkChart } from '@/components/benchmark_chart';

Benchmark results of v4 release of Zitadel.

## Performance test results

| Metric                                | Value |
|:--------------------------------------|:------|
| Baseline                              | none  |
| Purpose                               | Test current performance |
| Test start                            | 11:31 UTC |
| Test duration                         | 30min |
| Executed test                         | add\_session |
| k6 version                            | v1.0.0-rc1 |
| VUs                                   | 600 |
| Client location                       | US1 |
| ZITADEL location                      | US1 |
| ZITADEL container specification       | vCPU: 6<br/> Memory: 6 Gi <br/>Container min scale: 2<br/>Container max scale: 7 |
| ZITADEL Version                       | v4.0.0-rc2 |
| ZITADEL feature flags                 | webKey: true, improvedPerformance: \[\"IMPROVED\_PERFORMANCE\_ORG\_BY\_ID\", \"IMPROVED\_PERFORMANCE\_PROJECT\", \"IMPROVED\_PERFORMANCE\_USER\_GRANT\", \"IMPROVED\_PERFORMANCE\_ORG\_DOMAIN\_VERIFIED\", \"IMPROVED\_PERFORMANCE\_PROJECT\_GRANT\"\] |
| Database                              | type: psql<br />version: v17.4 |
| Database location                     | US1 |
| Database specification                | vCPU: 8<br/> memory: 32Gib |
| ZITADEL metrics during test           |  |
| Observed errors                       |  |
| Top 3 most expensive database queries | 1: Query events by instance_id, aggregate_types, event_types, position<br/>2: write events<br/>3: list members<br/> |
| k6 Iterations per second              | 607 |
| k6 output                             | [output](#k6-output) |
| flowchart outcome                     |  |

## Endpoint latencies

Until :37 were containers starting because it was a cold start test.

<BenchmarkChart testResults={OutputSource} />

## k6 output
```bash
  █ TOTAL RESULTS

    checks_total.......................: 2244565 1213.769815/s
    checks_succeeded...................: 99.99%  2244563 out of 2244565
    checks_failed......................: 0.00%   2 out of 2244565

    ✓ user defined
    ✓ authorize status ok
    ✓ login name status ok
    ✓ login shows password page
    ✓ password status ok
    ✓ password callback
    ✓ code set
    ✓ token status ok
    ✓ access token created
    ✓ id token created
    ✓ info created
    ✓ org created
    ✓ create user is status ok
    ✗ add Session status ok
      ↳  99% — ✓ 1121975 / ✗ 2
    ✓ add session is status ok
    ✓ org removed

    CUSTOM
    add_session_duration....................................................: min=236ms    avg=962.51ms max=3.66s    p(50)=951ms    p(95)=1.33s    p(99)=1.55s
    login_ui_enter_login_name_duration......................................: min=184.04ms avg=184.04ms max=184.04ms p(50)=184.04ms p(95)=184.04ms p(99)=184.04ms
    login_ui_enter_password_duration........................................: min=15.68ms  avg=15.68ms  max=15.68ms  p(50)=15.68ms  p(95)=15.68ms  p(99)=15.68ms
    login_ui_init_login_duration............................................: min=128.36ms avg=128.36ms max=128.36ms p(50)=128.36ms p(95)=128.36ms p(99)=128.36ms
    login_ui_token_duration.................................................: min=87.2ms   avg=87.2ms   max=87.2ms   p(50)=87.2ms   p(95)=87.2ms   p(99)=87.2ms
    org_create_org_duration.................................................: min=76.73ms  avg=76.73ms  max=76.73ms  p(50)=76.73ms  p(95)=76.73ms  p(99)=76.73ms
    session_add_session_duration............................................: min=0s       avg=961.43ms max=3.66s    p(50)=950.06ms p(95)=1.33s    p(99)=1.55s
    user_create_human_duration..............................................: min=548.74ms avg=10.69s   max=16.39s   p(50)=13.39s   p(95)=15.97s   p(99)=16.28s

    HTTP
    http_req_duration.......................................................: min=0s       avg=966.15ms max=18.87s   p(50)=950.04ms p(95)=1.33s    p(99)=1.55s
      { expected_response:true }............................................: min=15.68ms  avg=966.15ms max=18.87s   p(50)=950.04ms p(95)=1.33s    p(99)=1.55s
    http_req_failed.........................................................: 0.00%   2 out of 1123187
    http_reqs...............................................................: 1123187 607.374025/s

    EXECUTION
    iteration_duration......................................................: min=1.63ms   avg=962.61ms max=3.66s    p(50)=951.17ms p(95)=1.33s    p(99)=1.55s
    iterations..............................................................: 1121977 606.719706/s
    vus.....................................................................: 0       min=0            max=600
    vus_max.................................................................: 600     min=600          max=600

    NETWORK
    data_received...........................................................: 617 MB  334 kB/s
    data_sent...............................................................: 184 MB  100 kB/s

running (30m49.3s), 000/600 VUs, 1121977 complete and 0 interrupted iterations
default ✓ [======================================] 600 VUs  30m0s
```