wmeta: Add GPU entity

[gjulianm]

What does this PR do?

This PR adds definitions of GPU devices to workloadmeta. This data will be filled by the GPU monitoring module and used by the tagger in other PRs.

Motivation

Share the GPU devices detected to allow further integration with other parts of the agent.

Describe how you validated your changes

Added unit tests for the functional parts of the code.

Possible Drawbacks / Trade-offs

Additional Notes

[agent-platform-auto-pr]

Test changes on VM

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

inv aws.create-vm --pipeline-id=50854783 --os-family=ubuntu

Note: This applies to commit 3511c39

[agent-platform-auto-pr]

Package size comparison

Comparison with ancestor c23991318bdae9f2137171b7d8d44e7753d2e346

Diff per package

package	diff	status	size	ancestor	threshold
datadog-agent-amd64-deb	0.03MB	⚠️	1271.37MB	1271.34MB	140.00MB
datadog-iot-agent-amd64-deb	0.01MB	⚠️	113.23MB	113.22MB	10.00MB
datadog-dogstatsd-amd64-deb	0.01MB	⚠️	78.34MB	78.33MB	10.00MB
datadog-heroku-agent-amd64-deb	0.01MB	⚠️	526.50MB	526.49MB	70.00MB
datadog-agent-x86_64-rpm	0.03MB	⚠️	1280.60MB	1280.57MB	140.00MB
datadog-agent-x86_64-suse	0.03MB	⚠️	1280.60MB	1280.57MB	140.00MB
datadog-iot-agent-x86_64-rpm	0.01MB	⚠️	113.30MB	113.29MB	10.00MB
datadog-iot-agent-x86_64-suse	0.01MB	⚠️	113.30MB	113.29MB	10.00MB
datadog-dogstatsd-x86_64-rpm	0.01MB	⚠️	78.42MB	78.41MB	10.00MB
datadog-dogstatsd-x86_64-suse	0.01MB	⚠️	78.42MB	78.41MB	10.00MB
datadog-agent-arm64-deb	0.03MB	⚠️	1005.50MB	1005.48MB	140.00MB
datadog-iot-agent-arm64-deb	0.01MB	⚠️	108.72MB	108.71MB	10.00MB
datadog-dogstatsd-arm64-deb	0.01MB	⚠️	55.60MB	55.60MB	10.00MB
datadog-agent-aarch64-rpm	0.03MB	⚠️	1014.72MB	1014.69MB	140.00MB
datadog-iot-agent-aarch64-rpm	0.01MB	⚠️	108.79MB	108.78MB	10.00MB

Decision

⚠️ Warning

[cit-pr-commenter]

Regression Detector

Regression Detector Results

Metrics dashboard
Target profiles
Run ID: 8345da01-330c-4754-ab14-258b0cdc5ab4

Baseline: c239913
Comparison: 3511c39
Diff

Optimization Goals: ✅ No significant changes detected

Fine details of change detection per experiment

perf	experiment	goal	Δ mean %	Δ mean % CI	trials	links
➖	otel_to_otel_logs	ingress throughput	+0.98	[+0.27, +1.68]	1	Logs
➖	file_to_blackhole_1000ms_latency	egress throughput	+0.36	[-0.43, +1.15]	1	Logs
➖	quality_gate_idle	memory utilization	+0.35	[+0.30, +0.39]	1	Logs bounds checks dashboard
➖	file_to_blackhole_1000ms_latency_linear_load	egress throughput	+0.25	[-0.21, +0.71]	1	Logs
➖	file_tree	memory utilization	+0.23	[+0.11, +0.35]	1	Logs
➖	file_to_blackhole_300ms_latency	egress throughput	+0.09	[-0.54, +0.72]	1	Logs
➖	quality_gate_idle_all_features	memory utilization	+0.06	[-0.07, +0.20]	1	Logs bounds checks dashboard
➖	file_to_blackhole_0ms_latency	egress throughput	+0.02	[-0.79, +0.82]	1	Logs
➖	file_to_blackhole_0ms_latency_http2	egress throughput	+0.01	[-0.85, +0.88]	1	Logs
➖	tcp_dd_logs_filter_exclude	ingress throughput	+0.00	[-0.01, +0.01]	1	Logs
➖	file_to_blackhole_0ms_latency_http1	egress throughput	-0.01	[-0.85, +0.83]	1	Logs
➖	uds_dogstatsd_to_api	ingress throughput	-0.02	[-0.15, +0.10]	1	Logs
➖	file_to_blackhole_100ms_latency	egress throughput	-0.03	[-0.78, +0.72]	1	Logs
➖	file_to_blackhole_500ms_latency	egress throughput	-0.04	[-0.81, +0.74]	1	Logs
➖	uds_dogstatsd_to_api_cpu	% cpu utilization	-0.56	[-1.29, +0.16]	1	Logs
➖	quality_gate_logs	% cpu utilization	-0.62	[-3.54, +2.29]	1	Logs
➖	tcp_syslog_to_blackhole	ingress throughput	-1.96	[-2.02, -1.90]	1	Logs

Bounds Checks: ❌ Failed

perf	experiment	bounds_check_name	replicates_passed	links
❌	file_to_blackhole_300ms_latency	lost_bytes	9/10
✅	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	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	memory_usage	10/10	bounds checks dashboard
✅	quality_gate_idle_all_features	memory_usage	10/10	bounds checks dashboard
✅	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_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_logs, bounds check memory_usage: 10/10 replicas passed. Gate passed.
• quality_gate_logs, bounds check lost_bytes: 10/10 replicas passed. Gate passed.