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[CWS] split raw packet unmarshaller in build gated file #34915

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@paulcacheux paulcacheux commented Mar 8, 2025

What does this PR do?

This PR splits the unmarshaller of RawPacketEvent to be in a file build gated with pcap. This allows the security-agent to not import google/gopacket.

Motivation

Describe how you validated your changes

Possible Drawbacks / Trade-offs

Additional Notes

@github-actions github-actions bot added component/system-probe short review PR is simple enough to be reviewed quickly team/agent-security labels Mar 8, 2025
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Go Package Import Differences

Baseline: eb6d35e
Comparison: 1b7bb57

binaryosarchchange
security-agentlinuxamd64
+0, -1
-github.com/google/gopacket/layers
security-agentlinuxarm64
+0, -1
-github.com/google/gopacket/layers

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Test changes on VM

Use this command from test-infra-definitions to manually test this PR changes on a VM:

dda inv aws.create-vm --pipeline-id=58193265 --os-family=ubuntu

Note: This applies to commit 1b7bb57

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Uncompressed package size comparison

Comparison with ancestor eb6d35ef1b3a2fee6dfdebbaa1fbce23751a4c87

Size reduction summary
package diff status size ancestor threshold
datadog-agent-aarch64-rpm -1.44MB 810.64MB 812.08MB 0.50MB
datadog-agent-arm64-deb -1.44MB 800.87MB 802.31MB 0.50MB
datadog-agent-amd64-deb -1.46MB 809.87MB 811.33MB 0.50MB
datadog-agent-x86_64-rpm -1.46MB 819.66MB 821.12MB 0.50MB
datadog-agent-x86_64-suse -1.46MB 819.66MB 821.12MB 0.50MB
Diff per package
package diff status size ancestor threshold
datadog-dogstatsd-amd64-deb 0.00MB 39.29MB 39.29MB 0.50MB
datadog-dogstatsd-x86_64-rpm 0.00MB 39.37MB 39.37MB 0.50MB
datadog-dogstatsd-x86_64-suse 0.00MB 39.37MB 39.37MB 0.50MB
datadog-dogstatsd-arm64-deb 0.00MB 37.82MB 37.82MB 0.50MB
datadog-heroku-agent-amd64-deb 0.00MB 440.53MB 440.53MB 0.50MB
datadog-iot-agent-amd64-deb 0.00MB 62.13MB 62.13MB 0.50MB
datadog-iot-agent-x86_64-rpm 0.00MB 62.20MB 62.20MB 0.50MB
datadog-iot-agent-x86_64-suse 0.00MB 62.20MB 62.20MB 0.50MB
datadog-iot-agent-arm64-deb 0.00MB 59.35MB 59.35MB 0.50MB
datadog-iot-agent-aarch64-rpm 0.00MB 59.42MB 59.42MB 0.50MB

Decision

✅ Passed

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Static quality checks ✅

Please find below the results from static quality gates

Successful checks

Info

Result Quality gate On disk size On disk size limit On wire size On wire size limit
static_quality_gate_agent_deb_amd64 783.36 MiB 801.8 MiB 191.04 MiB 202.62 MiB
static_quality_gate_agent_deb_arm64 774.75 MiB 793.14 MiB 173.29 MiB 184.51 MiB
static_quality_gate_agent_rpm_amd64 783.35 MiB 801.79 MiB 193.16 MiB 205.03 MiB
static_quality_gate_agent_rpm_arm64 774.74 MiB 793.09 MiB 175.41 MiB 186.44 MiB
static_quality_gate_agent_suse_amd64 783.35 MiB 801.81 MiB 193.16 MiB 205.03 MiB
static_quality_gate_agent_suse_arm64 774.74 MiB 793.14 MiB 175.41 MiB 186.44 MiB
static_quality_gate_dogstatsd_deb_amd64 37.54 MiB 47.67 MiB 9.73 MiB 19.78 MiB
static_quality_gate_dogstatsd_deb_arm64 36.14 MiB 46.27 MiB 8.44 MiB 18.49 MiB
static_quality_gate_dogstatsd_rpm_amd64 37.54 MiB 47.67 MiB 9.74 MiB 19.79 MiB
static_quality_gate_dogstatsd_suse_amd64 37.54 MiB 47.67 MiB 9.74 MiB 19.79 MiB
static_quality_gate_iot_agent_deb_amd64 59.32 MiB 69.0 MiB 14.91 MiB 24.8 MiB
static_quality_gate_iot_agent_deb_arm64 56.68 MiB 66.4 MiB 12.84 MiB 22.8 MiB
static_quality_gate_iot_agent_rpm_amd64 59.33 MiB 69.0 MiB 14.93 MiB 24.8 MiB
static_quality_gate_iot_agent_rpm_arm64 56.68 MiB 66.4 MiB 12.87 MiB 22.8 MiB
static_quality_gate_iot_agent_suse_amd64 59.33 MiB 69.0 MiB 14.93 MiB 24.8 MiB
static_quality_gate_docker_agent_amd64 868.5 MiB 886.12 MiB 292.19 MiB 304.21 MiB
static_quality_gate_docker_agent_arm64 883.18 MiB 900.79 MiB 278.52 MiB 290.47 MiB
static_quality_gate_docker_agent_jmx_amd64 1.04 GiB 1.06 GiB 367.3 MiB 379.33 MiB
static_quality_gate_docker_agent_jmx_arm64 1.04 GiB 1.06 GiB 349.62 MiB 361.55 MiB
static_quality_gate_docker_dogstatsd_amd64 45.69 MiB 55.78 MiB 17.23 MiB 27.28 MiB
static_quality_gate_docker_dogstatsd_arm64 44.33 MiB 54.45 MiB 16.11 MiB 26.16 MiB
static_quality_gate_docker_cluster_agent_amd64 264.82 MiB 274.78 MiB 106.28 MiB 116.28 MiB
static_quality_gate_docker_cluster_agent_arm64 280.75 MiB 290.82 MiB 101.1 MiB 111.12 MiB

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Regression Detector

Regression Detector Results

Metrics dashboard
Target profiles
Run ID: 1df2cff5-61a9-4c64-9321-027d98bc56ba

Baseline: eb6d35e
Comparison: 1b7bb57
Diff

Optimization Goals: ✅ No significant changes detected

Fine details of change detection per experiment

perf experiment goal Δ mean % Δ mean % CI trials links
uds_dogstatsd_to_api_cpu % cpu utilization +0.91 [+0.08, +1.74] 1 Logs
quality_gate_idle memory utilization +0.86 [+0.79, +0.93] 1 Logs bounds checks dashboard
tcp_syslog_to_blackhole ingress throughput +0.70 [+0.65, +0.76] 1 Logs
file_to_blackhole_500ms_latency egress throughput +0.15 [-0.63, +0.94] 1 Logs
tcp_dd_logs_filter_exclude ingress throughput +0.00 [-0.02, +0.03] 1 Logs
file_to_blackhole_0ms_latency_http1 egress throughput -0.00 [-0.89, +0.88] 1 Logs
uds_dogstatsd_to_api ingress throughput -0.01 [-0.30, +0.29] 1 Logs
file_to_blackhole_100ms_latency egress throughput -0.01 [-0.70, +0.67] 1 Logs
file_to_blackhole_0ms_latency_http2 egress throughput -0.01 [-0.88, +0.85] 1 Logs
file_to_blackhole_0ms_latency egress throughput -0.02 [-0.86, +0.83] 1 Logs
file_to_blackhole_300ms_latency egress throughput -0.04 [-0.67, +0.59] 1 Logs
quality_gate_logs % cpu utilization -0.09 [-2.89, +2.71] 1 Logs
file_to_blackhole_1000ms_latency egress throughput -0.14 [-0.92, +0.63] 1 Logs
file_to_blackhole_1000ms_latency_linear_load egress throughput -0.22 [-0.69, +0.25] 1 Logs
quality_gate_idle_all_features memory utilization -1.66 [-1.74, -1.58] 1 Logs bounds checks dashboard
file_tree memory utilization -2.06 [-2.18, -1.95] 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:

  1. Its estimated |Δ mean %| ≥ 5.00%, indicating the change is big enough to merit a closer look.

  2. 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.

  3. 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, bounds check intake_connections: 10/10 replicas passed. Gate passed.
  • quality_gate_idle, bounds check memory_usage: 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.

@paulcacheux paulcacheux added changelog/no-changelog qa/done QA done before merge and regressions are covered by tests labels Mar 9, 2025
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