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# Reconfiguration testing Results | ||
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<!-- TOC --> | ||
- [Reconfiguration testing Results](#reconfiguration-testing-results) | ||
- [Test environment](#test-environment) | ||
- [Results Tables](#results-tables) | ||
- [NGINX Reloads and Time to Ready](#nginx-reloads-and-time-to-ready) | ||
- [Event Batch Processing](#event-batch-processing) | ||
- [NumResources -> Total Resources](#numresources---total-resources) | ||
- [Observations](#observations) | ||
<!-- TOC --> | ||
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## Test environment | ||
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GKE cluster: | ||
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- Node count: 3 | ||
- Instance Type: e2-medium | ||
- k8s version: 1.27.3-gke.100 | ||
- Zone: us-central1-c | ||
- Total vCPUs: 6 | ||
- Total RAM: 12GB | ||
- Max pods per node: 110 | ||
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NGF deployment: | ||
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- NGF version: edge - git commit 29b45e38bacd7c4f22834938105e3cda4f29f6d1 | ||
- NGINX Version: 1.25.2 | ||
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## Results Tables | ||
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### NGINX Reloads and Time to Ready | ||
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| Test number | NumResources | TimeToReadyTotal (s) | TimeToReadyAvgSingle (s) | NGINX reloads | NGINX reload avg time (ms) | <= 500ms | <= 1000ms | | ||
|-------------|--------------|----------------------|--------------------------|---------------|----------------------------|----------|-----------| | ||
| 1 | 30 | 1 | 1 | 2 | 191 | 100% | 100% | | ||
| 1 | 150 | 2 | 2 | 2 | 440 | 50% | 100% | | ||
| 2 | 30 | 50 | <1 | 93 | 162 | 100% | 100% | | ||
| 2 | 150 | 208 | <1 | 396 | 281 | 96.46% | 100% | | ||
| 3 | 30 | 1 | 1 | 93 | 129 | 100% | 100% | | ||
| 3 | 150 | 1 | 1 | 453 | 130 | 100% | 100% | | ||
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### Event Batch Processing | ||
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| Test number | NumResources | Event Batch Total | Event Batch Processing avg time (ms) | <= 500ms | <= 1000ms | | ||
|-------------|--------------|-------------------|--------------------------------------|----------|-----------| | ||
| 1 | 30 | 69 | 6.232 | 100% | 100% | | ||
| 1 | 150 | 309 | 3.638 | 99.68% | 100% | | ||
| 2 | 30 | 465 | 38.759 | 100% | 100% | | ||
| 2 | 150 | 1941 | 68.539 | 98.51% | 100% | | ||
| 3 | 30 | 374 | 36.834 | 99.73% | 99.73% | | ||
| 3 | 150 | 1812 | 40.411 | 99.94% | 99.94% | | ||
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## NumResources -> Total Resources | ||
| NumResources | Gateways | Secrets | ReferenceGrants | Namespaces | application Pods | application Services | HTTPRoutes | Total Resources | | ||
| ------------ | -------- | ------- | --------------- | ---------- | ---------------- | -------------------- | ---------- | --------------- | | ||
| x | 1 | 1 | 1 | x+1 | 2x | 2x | 3x | <total> | | ||
| 30 | 1 | 1 | 1 | 31 | 60 | 60 | 90 | 244 | | ||
| 150 | 1 | 1 | 1 | 151 | 300 | 300 | 450 | 1204 | | ||
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## Observations | ||
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1. We are reloading after reconciling a ReferenceGrant even when there is no Gateway. This is because we treat every | ||
upsert/delete of a ReferenceGrant as a change. This means we will regenerate NGINX config every time a ReferenceGrant | ||
is created, updated (generation must change), or deleted, even if it does not apply to the accepted Gateway. | ||
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Issue filed: https://github.com/nginxinc/nginx-gateway-fabric/issues/1124 | ||
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2. We are reloading after reconciling a HTTPRoute even when there is no accepted Gateway and no config being generated. | ||
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Issue filed: https://github.com/nginxinc/nginx-gateway-fabric/issues/1123 | ||
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3. Majority of NGINX reloads were in the <= 500ms bucket, with all of them being in the <= 1000ms bucket. An increase | ||
in the reload time based on number of configured resources resulting in NGINX configuration changes was observed. | ||
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4. No errors (NGF or NGINX) were observed in any test run. |
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