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Merged
merged 2 commits into from
Jun 11, 2025
Merged

[CWS] Allow getting length of variables #37368

merged 2 commits into from
Jun 11, 2025

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lebauce
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@lebauce lebauce commented May 26, 2025

What does this PR do?

Allow writing:

set:
  name: length_of_var1
  expression: ${var1.length}

Motivation

Describe how you validated your changes

Possible Drawbacks / Trade-offs

Additional Notes

@lebauce lebauce requested a review from a team as a code owner May 26, 2025 10:29
@lebauce lebauce added changelog/no-changelog team/agent-security qa/done QA done before merge and regressions are covered by tests labels May 26, 2025
@github-actions github-actions bot added component/system-probe short review PR is simple enough to be reviewed quickly labels May 26, 2025
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Uncompressed package size comparison

Comparison with ancestor 98436fb7d7f283f8c31d343fc990c003a0990d07

Size reduction summary
package diff status size ancestor threshold
datadog-agent-x86_64-rpm -0.00MB ✅ 782.39MB 782.39MB 0.50MB
datadog-agent-x86_64-suse -0.00MB ✅ 782.39MB 782.39MB 0.50MB
datadog-agent-amd64-deb -0.00MB ✅ 773.44MB 773.44MB 0.50MB
Diff per package
package diff status size ancestor threshold
datadog-agent-aarch64-rpm 0.01MB ⚠️ 768.32MB 768.32MB 0.50MB
datadog-agent-arm64-deb 0.01MB ⚠️ 759.40MB 759.39MB 0.50MB
datadog-dogstatsd-amd64-deb 0.00MB ✅ 31.99MB 31.99MB 0.50MB
datadog-dogstatsd-x86_64-rpm 0.00MB ✅ 32.07MB 32.07MB 0.50MB
datadog-dogstatsd-x86_64-suse 0.00MB ✅ 32.07MB 32.07MB 0.50MB
datadog-dogstatsd-arm64-deb 0.00MB ✅ 30.47MB 30.47MB 0.50MB
datadog-heroku-agent-amd64-deb 0.00MB ✅ 380.16MB 380.16MB 0.50MB
datadog-iot-agent-amd64-deb 0.00MB ✅ 62.71MB 62.71MB 0.50MB
datadog-iot-agent-x86_64-rpm 0.00MB ✅ 62.79MB 62.79MB 0.50MB
datadog-iot-agent-x86_64-suse 0.00MB ✅ 62.79MB 62.79MB 0.50MB
datadog-iot-agent-arm64-deb 0.00MB ✅ 59.28MB 59.28MB 0.50MB
datadog-iot-agent-aarch64-rpm 0.00MB ✅ 59.37MB 59.37MB 0.50MB

Decision

⚠️ Warning

@cit-pr-commenter cit-pr-commenter
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Regression Detector

Regression Detector Results

Metrics dashboard
Target profiles
Run ID: af90e4db-d099-4bb6-9144-a5b23eccde2e

Baseline: 98436fb
Comparison: 50b5933
Diff

Optimization Goals: ✅ No significant changes detected

Fine details of change detection per experiment

perf experiment goal Δ mean % Δ mean % CI trials links
➖ quality_gate_logs % cpu utilization +1.89 [-0.77, +4.54] 1 Logs bounds checks dashboard
➖ file_tree memory utilization +1.13 [+0.95, +1.32] 1 Logs
➖ docker_containers_cpu % cpu utilization +0.96 [-2.90, +4.82] 1 Logs
➖ tcp_syslog_to_blackhole ingress throughput +0.50 [+0.44, +0.56] 1 Logs
➖ quality_gate_idle_all_features memory utilization +0.39 [+0.28, +0.50] 1 Logs bounds checks dashboard
➖ file_to_blackhole_0ms_latency egress throughput +0.11 [-0.51, +0.73] 1 Logs
➖ docker_containers_memory memory utilization +0.10 [+0.02, +0.18] 1 Logs
➖ file_to_blackhole_100ms_latency egress throughput +0.06 [-0.56, +0.67] 1 Logs
➖ quality_gate_idle memory utilization +0.05 [-0.00, +0.11] 1 Logs bounds checks dashboard
➖ ddot_metrics memory utilization +0.02 [-0.09, +0.13] 1 Logs
➖ file_to_blackhole_500ms_latency egress throughput +0.01 [-0.58, +0.60] 1 Logs
➖ uds_dogstatsd_to_api ingress throughput +0.00 [-0.26, +0.27] 1 Logs
➖ tcp_dd_logs_filter_exclude ingress throughput -0.00 [-0.02, +0.02] 1 Logs
➖ file_to_blackhole_1000ms_latency egress throughput -0.01 [-0.65, +0.63] 1 Logs
➖ file_to_blackhole_1000ms_latency_linear_load egress throughput -0.02 [-0.25, +0.21] 1 Logs
➖ file_to_blackhole_0ms_latency_http1 egress throughput -0.03 [-0.63, +0.57] 1 Logs
➖ file_to_blackhole_0ms_latency_http2 egress throughput -0.03 [-0.64, +0.57] 1 Logs
➖ file_to_blackhole_300ms_latency egress throughput -0.07 [-0.66, +0.52] 1 Logs
➖ ddot_logs memory utilization -0.08 [-0.21, +0.05] 1 Logs
➖ otlp_ingest_logs memory utilization -0.21 [-0.33, -0.08] 1 Logs
➖ otlp_ingest_metrics memory utilization -0.31 [-0.47, -0.15] 1 Logs
➖ uds_dogstatsd_to_api_cpu % cpu utilization -0.31 [-1.20, +0.58] 1 Logs
➖ uds_dogstatsd_20mb_12k_contexts_20_senders memory utilization -0.55 [-0.59, -0.50] 1 Logs

Bounds Checks: ✅ Passed

perf experiment bounds_check_name replicates_passed links
✅ docker_containers_cpu simple_check_run 10/10
✅ docker_containers_memory memory_usage 10/10
✅ docker_containers_memory simple_check_run 10/10
✅ 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 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 bounds checks dashboard
✅ quality_gate_logs lost_bytes 10/10 bounds checks dashboard
✅ quality_gate_logs memory_usage 10/10 bounds checks dashboard

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 intake_connections: 10/10 replicas passed. Gate passed.
  • quality_gate_logs, bounds check lost_bytes: 10/10 replicas passed. Gate passed.
  • quality_gate_logs, 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.
  • 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.

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Static quality checks

✅ Please find below the results from static quality gates
Comparison made with ancestor 98436fb

Successful checks

Info

Quality gate Delta On disk size (MiB) Delta On wire size (MiB)
✅ agent_deb_amd64 $${\color{red}+0}$$ $${\color{green}746.16}$$ < $${752.99}$$ $${\color{red}+0}$$ $${\color{green}184.75}$$ < $${187.44}$$
✅ agent_deb_amd64_fips $${\color{green}-0.01}$$ $${\color{green}744.53}$$ < $${751.36}$$ $${\color{green}-0.07}$$ $${\color{green}184.2}$$ < $${187.06}$$
✅ agent_heroku_amd64 $${\color{green}0}$$ $${\color{green}368.53}$$ < $${369.68}$$ $${\color{red}+0}$$ $${\color{green}98.52}$$ < $${99.55}$$
✅ agent_msi $${\color{green}-0.01}$$ $${\color{green}977.26}$$ < $${978.01}$$ $${\color{green}-0.01}$$ $${\color{green}148.37}$$ < $${149.12}$$
✅ agent_rpm_amd64 $${\color{red}+0}$$ $${\color{green}746.15}$$ < $${752.98}$$ $${\color{red}+0.02}$$ $${\color{green}186.42}$$ < $${190.03}$$
✅ agent_rpm_amd64_fips $${\color{green}-0.01}$$ $${\color{green}744.52}$$ < $${751.35}$$ $${\color{green}-0.02}$$ $${\color{green}186.22}$$ < $${189.81}$$
✅ agent_rpm_arm64 $${\color{green}-0.01}$$ $${\color{green}732.73}$$ < $${739.42}$$ $${\color{green}-0.01}$$ $${\color{green}168.41}$$ < $${171.23}$$
✅ agent_rpm_arm64_fips $${\color{green}-0.01}$$ $${\color{green}731.22}$$ < $${737.91}$$ $${\color{green}-0.01}$$ $${\color{green}167.58}$$ < $${170.22}$$
✅ agent_suse_amd64 $${\color{red}+0}$$ $${\color{green}746.15}$$ < $${752.98}$$ $${\color{red}+0.02}$$ $${\color{green}186.42}$$ < $${190.03}$$
✅ agent_suse_amd64_fips $${\color{green}-0.01}$$ $${\color{green}744.52}$$ < $${751.35}$$ $${\color{green}-0.02}$$ $${\color{green}186.22}$$ < $${189.81}$$
✅ agent_suse_arm64 $${\color{green}-0.01}$$ $${\color{green}732.73}$$ < $${739.42}$$ $${\color{green}-0.01}$$ $${\color{green}168.41}$$ < $${171.23}$$
✅ agent_suse_arm64_fips $${\color{green}-0.01}$$ $${\color{green}731.22}$$ < $${737.91}$$ $${\color{green}-0.01}$$ $${\color{green}167.58}$$ < $${170.22}$$
✅ docker_agent_amd64 $${\color{red}+0}$$ $${\color{green}829.93}$$ < $${849.39}$$ $${\color{green}-0}$$ $${\color{green}281.78}$$ < $${288.34}$$
✅ docker_agent_arm64 $${\color{green}-0.01}$$ $${\color{green}839.98}$$ < $${858.97}$$ $${\color{red}+0}$$ $${\color{green}267.9}$$ < $${274.36}$$
✅ docker_agent_jmx_amd64 $${\color{red}+0}$$ $${\color{green}829.93}$$ < $${849.39}$$ $${\color{green}-0}$$ $${\color{green}281.78}$$ < $${288.34}$$
✅ docker_agent_jmx_arm64 $${\color{green}-0.01}$$ $${\color{green}839.98}$$ < $${858.97}$$ $${\color{red}+0}$$ $${\color{green}267.9}$$ < $${274.36}$$
✅ docker_agent_windows1809 $${\color{red}+0}$$ $${\color{green}829.93}$$ < $${849.39}$$ $${\color{green}-0}$$ $${\color{green}281.78}$$ < $${288.34}$$
✅ docker_agent_windows1809_core $${\color{red}+0}$$ $${\color{green}829.93}$$ < $${849.39}$$ $${\color{green}-0}$$ $${\color{green}281.78}$$ < $${288.34}$$
✅ docker_agent_windows1809_core_jmx $${\color{red}+0}$$ $${\color{green}829.93}$$ < $${849.39}$$ $${\color{green}-0}$$ $${\color{green}281.78}$$ < $${288.34}$$
✅ docker_agent_windows1809_jmx $${\color{red}+0}$$ $${\color{green}829.93}$$ < $${849.39}$$ $${\color{green}-0}$$ $${\color{green}281.78}$$ < $${288.34}$$
✅ docker_agent_windows2022 $${\color{red}+0}$$ $${\color{green}829.93}$$ < $${849.39}$$ $${\color{green}-0}$$ $${\color{green}281.78}$$ < $${288.34}$$
✅ docker_agent_windows2022_core $${\color{red}+0}$$ $${\color{green}829.93}$$ < $${849.39}$$ $${\color{green}-0}$$ $${\color{green}281.78}$$ < $${288.34}$$
✅ docker_agent_windows2022_core_jmx $${\color{red}+0}$$ $${\color{green}829.93}$$ < $${849.39}$$ $${\color{green}-0}$$ $${\color{green}281.78}$$ < $${288.34}$$
✅ docker_agent_windows2022_jmx $${\color{red}+0}$$ $${\color{green}829.93}$$ < $${849.39}$$ $${\color{green}-0}$$ $${\color{green}281.78}$$ < $${288.34}$$
✅ docker_cluster_agent_amd64 $${\color{green}-0}$$ $${\color{green}258.93}$$ < $${259.73}$$ $${\color{green}-0}$$ $${\color{green}102.79}$$ < $${103.68}$$
✅ docker_cluster_agent_arm64 $${\color{green}-0.01}$$ $${\color{green}273.43}$$ < $${274.24}$$ $${\color{green}-0.01}$$ $${\color{green}97.55}$$ < $${98.45}$$
✅ docker_cws_instrumentation_amd64 $${\color{green}0}$$ $${\color{green}7.08}$$ < $${7.12}$$ $${\color{green}-0}$$ $${\color{green}2.95}$$ < $${3.29}$$
✅ docker_cws_instrumentation_arm64 $${\color{red}+0}$$ $${\color{green}6.69}$$ < $${6.92}$$ $${\color{red}+0}$$ $${\color{green}2.7}$$ < $${3.07}$$
✅ docker_dogstatsd_amd64 $${\color{red}+0}$$ $${\color{green}38.63}$$ < $${39.57}$$ $${\color{green}-0}$$ $${\color{green}14.81}$$ < $${15.76}$$
✅ docker_dogstatsd_arm64 $${\color{green}0}$$ $${\color{green}37.26}$$ < $${38.2}$$ $${\color{red}+0}$$ $${\color{green}13.88}$$ < $${14.83}$$
✅ dogstatsd_deb_amd64 $${\color{green}0}$$ $${\color{green}30.58}$$ < $${31.52}$$ $${\color{green}-0}$$ $${\color{green}8.03}$$ < $${8.97}$$
✅ dogstatsd_deb_arm64 $${\color{green}0}$$ $${\color{green}29.14}$$ < $${30.08}$$ $${\color{green}-0}$$ $${\color{green}6.97}$$ < $${7.92}$$
✅ dogstatsd_rpm_amd64 $${\color{green}0}$$ $${\color{green}30.58}$$ < $${31.52}$$ $${\color{green}-0}$$ $${\color{green}8.04}$$ < $${8.98}$$
✅ dogstatsd_suse_amd64 $${\color{green}0}$$ $${\color{green}30.58}$$ < $${31.52}$$ $${\color{green}-0}$$ $${\color{green}8.04}$$ < $${8.98}$$
✅ iot_agent_deb_amd64 $${\color{green}0}$$ $${\color{green}59.88}$$ < $${60.17}$$ $${\color{red}+0}$$ $${\color{green}14.97}$$ < $${15.82}$$
✅ iot_agent_deb_arm64 $${\color{green}0}$$ $${\color{green}56.61}$$ < $${56.94}$$ $${\color{red}+0}$$ $${\color{green}12.85}$$ < $${13.86}$$
✅ iot_agent_deb_armhf $${\color{green}0}$$ $${\color{green}56.06}$$ < $${56.41}$$ $${\color{red}+0}$$ $${\color{green}12.98}$$ < $${13.86}$$
✅ iot_agent_rpm_amd64 $${\color{green}0}$$ $${\color{green}59.88}$$ < $${60.18}$$ $${\color{red}+0}$$ $${\color{green}14.99}$$ < $${15.84}$$
✅ iot_agent_rpm_arm64 $${\color{green}0}$$ $${\color{green}56.61}$$ < $${56.94}$$ $${\color{red}+0}$$ $${\color{green}12.87}$$ < $${13.76}$$
✅ iot_agent_suse_amd64 $${\color{green}0}$$ $${\color{green}59.88}$$ < $${60.18}$$ $${\color{red}+0}$$ $${\color{green}14.99}$$ < $${15.84}$$

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lebauce commented Jun 11, 2025

/merge

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dd-devflow bot commented Jun 11, 2025 •
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2025-06-11 07:41:43 UTC ℹ️ Start processing command /merge

2025-06-11 07:41:47 UTC ℹ️ MergeQueue: pull request added to the queue

The expected merge time in main is approximately 47m (p90).

2025-06-11 08:32:53 UTC ℹ️ MergeQueue: This merge request was merged

@dd-mergequeue dd-mergequeue bot merged commit 0047c9a into main Jun 11, 2025
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@dd-mergequeue dd-mergequeue bot deleted the lebauce/length-on-vars branch June 11, 2025 08:32
@github-actions github-actions bot added this to the 7.68.0 milestone Jun 11, 2025
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@paulcacheux paulcacheux paulcacheux approved these changes

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