copy LINUX_VERSION_CODE reading from cilium/ebpf #35530
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brycekahle
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team/ebpf-platform
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medium review
Go Package Import DifferencesBaseline: ad2dd22
|
Uncompressed package size comparisonComparison with ancestor Size reduction summary
Diff per package
Decision✅ Passed |
Regression DetectorRegression Detector ResultsMetrics dashboard Baseline: ad2dd22 Optimization Goals: ✅ No significant changes detected
|
| perf | experiment | goal | Δ mean % | Δ mean % CI | trials | links |
|---|---|---|---|---|---|---|
| ➖ | file_tree | memory utilization | +0.37 | [+0.24, +0.50] | 1 | Logs |
| ➖ | tcp_syslog_to_blackhole | ingress throughput | +0.09 | [+0.02, +0.16] | 1 | Logs |
| ➖ | file_to_blackhole_500ms_latency | egress throughput | +0.06 | [-0.73, +0.86] | 1 | Logs |
| ➖ | file_to_blackhole_0ms_latency | egress throughput | +0.03 | [-0.83, +0.89] | 1 | Logs |
| ➖ | file_to_blackhole_300ms_latency | egress throughput | +0.03 | [-0.60, +0.66] | 1 | Logs |
| ➖ | file_to_blackhole_100ms_latency | egress throughput | +0.02 | [-0.72, +0.75] | 1 | Logs |
| ➖ | file_to_blackhole_0ms_latency_http2 | egress throughput | -0.00 | [-0.80, +0.80] | 1 | Logs |
| ➖ | tcp_dd_logs_filter_exclude | ingress throughput | -0.00 | [-0.02, +0.02] | 1 | Logs |
| ➖ | file_to_blackhole_1000ms_latency | egress throughput | -0.00 | [-0.77, +0.77] | 1 | Logs |
| ➖ | uds_dogstatsd_to_api | ingress throughput | -0.01 | [-0.28, +0.27] | 1 | Logs |
| ➖ | file_to_blackhole_0ms_latency_http1 | egress throughput | -0.03 | [-0.88, +0.82] | 1 | Logs |
| ➖ | quality_gate_idle_all_features | memory utilization | -0.10 | [-0.17, -0.03] | 1 | Logs bounds checks dashboard |
| ➖ | otlp_ingest_traces | memory utilization | -0.21 | [-0.59, +0.18] | 1 | Logs |
| ➖ | otlp_ingest_logs | memory utilization | -0.21 | [-0.37, -0.05] | 1 | Logs |
| ➖ | quality_gate_idle | memory utilization | -0.22 | [-0.27, -0.17] | 1 | Logs bounds checks dashboard |
| ➖ | file_to_blackhole_1000ms_latency_linear_load | egress throughput | -0.34 | [-0.81, +0.13] | 1 | Logs |
| ➖ | uds_dogstatsd_20mb_12k_contexts_20_senders | memory utilization | -0.41 | [-0.45, -0.38] | 1 | Logs |
| ➖ | otlp_ingest_metrics | memory utilization | -0.55 | [-0.70, -0.40] | 1 | Logs |
| ➖ | quality_gate_logs | % cpu utilization | -1.37 | [-4.15, +1.40] | 1 | Logs |
| ➖ | uds_dogstatsd_to_api_cpu | % cpu utilization | -1.62 | [-2.44, -0.79] | 1 | Logs |
Bounds Checks: ✅ Passed
| perf | experiment | bounds_check_name | replicates_passed | links |
|---|---|---|---|---|
| ✅ | file_to_blackhole_0ms_latency | lost_bytes | 10/10 | |
| ✅ | file_to_blackhole_0ms_latency | memory_usage | 10/10 | |
| ✅ | file_to_blackhole_0ms_latency_http1 | lost_bytes | 10/10 | |
| ✅ | file_to_blackhole_0ms_latency_http1 | memory_usage | 10/10 | |
| ✅ | file_to_blackhole_0ms_latency_http2 | lost_bytes | 10/10 | |
| ✅ | file_to_blackhole_0ms_latency_http2 | memory_usage | 10/10 | |
| ✅ | file_to_blackhole_1000ms_latency | memory_usage | 10/10 | |
| ✅ | file_to_blackhole_1000ms_latency_linear_load | memory_usage | 10/10 | |
| ✅ | file_to_blackhole_100ms_latency | lost_bytes | 10/10 | |
| ✅ | file_to_blackhole_100ms_latency | memory_usage | 10/10 | |
| ✅ | file_to_blackhole_300ms_latency | lost_bytes | 10/10 | |
| ✅ | file_to_blackhole_300ms_latency | memory_usage | 10/10 | |
| ✅ | file_to_blackhole_500ms_latency | lost_bytes | 10/10 | |
| ✅ | file_to_blackhole_500ms_latency | memory_usage | 10/10 | |
| ✅ | quality_gate_idle | intake_connections | 10/10 | bounds checks dashboard |
| ✅ | quality_gate_idle | memory_usage | 10/10 | bounds checks dashboard |
| ✅ | quality_gate_idle_all_features | intake_connections | 10/10 | bounds checks dashboard |
| ✅ | quality_gate_idle_all_features | memory_usage | 10/10 | bounds checks dashboard |
| ✅ | quality_gate_logs | intake_connections | 10/10 | |
| ✅ | quality_gate_logs | lost_bytes | 10/10 | |
| ✅ | quality_gate_logs | memory_usage | 10/10 |
Explanation
Confidence level: 90.00%
Effect size tolerance: |Δ mean %| ≥ 5.00%
Performance changes are noted in the perf column of each table:
- ✅ = significantly better comparison variant performance
- ❌ = significantly worse comparison variant performance
- ➖ = no significant change in performance
A regression test is an A/B test of target performance in a repeatable rig, where "performance" is measured as "comparison variant minus baseline variant" for an optimization goal (e.g., ingress throughput). Due to intrinsic variability in measuring that goal, we can only estimate its mean value for each experiment; we report uncertainty in that value as a 90.00% confidence interval denoted "Δ mean % CI".
For each experiment, we decide whether a change in performance is a "regression" -- a change worth investigating further -- if all of the following criteria are true:
-
Its estimated |Δ mean %| ≥ 5.00%, indicating the change is big enough to merit a closer look.
-
Its 90.00% confidence interval "Δ mean % CI" does not contain zero, indicating that if our statistical model is accurate, there is at least a 90.00% chance there is a difference in performance between baseline and comparison variants.
-
Its configuration does not mark it "erratic".
CI Pass/Fail Decision
✅ Passed. All Quality Gates passed.
- quality_gate_logs, bounds check memory_usage: 10/10 replicas passed. Gate passed.
- quality_gate_logs, bounds check lost_bytes: 10/10 replicas passed. Gate passed.
- quality_gate_logs, bounds check intake_connections: 10/10 replicas passed. Gate passed.
- quality_gate_idle_all_features, bounds check intake_connections: 10/10 replicas passed. Gate passed.
- quality_gate_idle_all_features, bounds check memory_usage: 10/10 replicas passed. Gate passed.
- quality_gate_idle, bounds check memory_usage: 10/10 replicas passed. Gate passed.
- quality_gate_idle, bounds check intake_connections: 10/10 replicas passed. Gate passed.
Test changes on VMUse this command from test-infra-definitions to manually test this PR changes on a VM: dda inv aws.create-vm --pipeline-id=60198631 --os-family=ubuntuNote: This applies to commit efce8f9 |
Static quality checks ✅Please find below the results from static quality gates Successful checksInfo
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Mar 28, 2025
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What does this PR do?
Copies in the code that reads
LINUX_VERSION_CODEfromgithub.com/cilium/ebpf.Motivation
Avoids unnecessary deps that the
github.com/cilium/ebpf/featurespackage brings, when we only need to read the version.Describe how you validated your changes
Existing and new automated tests
Possible Drawbacks / Trade-offs
Additional Notes
Combined with #35531 this should remove
github.com/cilium/ebpffromagentand other processes that do not need it.