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[SVLS-8351] Add CPU Enhanced Metrics in Linux Azure Functions#77

Merged

kathiehuang merged 55 commits into

mainDataDog/serverless-components:mainfrom

kathie.huang/add-cpu-enhanced-metricsDataDog/serverless-components:kathie.huang/add-cpu-enhanced-metricsCopy head branch name to clipboard

May 13, 2026

Conversation Commits55 (55)Checks Files changed

Merged

[SVLS-8351] Add CPU Enhanced Metrics in Linux Azure Functions#77
kathiehuang merged 55 commits into
mainfrom
kathie.huang/add-cpu-enhanced-metrics

Commits

Commits on May 13, 2026

Set up Cgroup, CpuStats, and CpuMetricsCollector structs, and cgroup file reading and cpu stats calculation functions
kathiehuang
committed
Add cpu collector into loop with dogstatsd
kathiehuang
committed
Fix license
kathiehuang
committed
Move metrics_collector into its own crate
kathiehuang
committed
Submit cpu usage and limit metrics and fix units
kathiehuang
committed
Test more precise time interval, add instance ID as a tag
kathiehuang
committed
Refactor to make CpuMetricsCollector, CpuStats, and metrics submission OS-agnostic, create separate crates for Windows and Linux for reading raw CPU data
kathiehuang
committed
Testing different cpu collection methods
kathiehuang
committed
Clean up and emit cpu usage and host-level cpu usage metrics
kathiehuang
committed
Clean up and emit cpu usage and host-level cpu usage metrics
kathiehuang
committed
Add tags to metrics
kathiehuang
committed
Ensure tags match cloud integration metrics
kathiehuang
committed
Separate Windows CPU metrics collection into separate PR
kathiehuang
committed
Separate CPU host usage metrics collection into separate PR
kathiehuang
committed
Remove functionname tag
kathiehuang
committed
Send enhanced metrics even if custom metrics are turned off
kathiehuang
committed
Pull out building metrics tags into function
kathiehuang
committed
Add unit tests
kathiehuang
committed
Clean up
kathiehuang
committed
Refactor
kathiehuang
committed
Remove last_collection_time
kathiehuang
committed
Only send enhanced metrics for Azure Functions
kathiehuang
committed
Add back last_collection_time
kathiehuang
committed
Only enable enhanced metrics for Azure Functions
kathiehuang
committed
Only create CPUMetricsCollector when metrics flusher is successfully created
kathiehuang
committed
Create windows-enhanced-metrics feature for Windows-specific logic
kathiehuang
committed
Add unit to collection interval variable
kathiehuang
committed
Make last_usage_ns an Option and keep CPU total as u64 until f64 is needed
kathiehuang
committed
Change collection interval to 1 for precision and remove unneeded logs
kathiehuang
committed
Move tag building logic from datadog-serverless-compat to datadog-metrics-collector
kathiehuang
committed
Remove unused dependencies from datadog-trace-agent
kathiehuang
committed
Turn off DD_ENHANCED_METRICS in Windows for now to prevent metrics collector from initializing and logging that metrics collection is being skipped
kathiehuang
committed
Handle malformed cpuset.cpus file
kathiehuang
committed
Skip collection when elapsed_secs is less than or equal to 0
kathiehuang
committed
Update comments to clarify that Windows is not supported yet
kathiehuang
committed
Add unit test for metric classification
kathiehuang
committed
Log when scheduler quota can't be parsed
kathiehuang
committed
nit: address clippy warning
kathiehuang
committed
Remove resource_id tag and add check for invalid CPU set range
kathiehuang
committed
Move log flusher into flush_interval.tick()
kathiehuang
committed
Clean up
kathiehuang
committed
Use azure_tags::build_enhanced_metrics_tags
kathiehuang
committed
Add DD_ENHANCED_METRICS_ENABLED to EnabledMetricsComponents
kathiehuang
committed
Gate windows-enhanced-metrics feature explicitly by OS
kathiehuang
committed
Update license
kathiehuang
committed
Fix Windows CI checks
kathiehuang
committed
Remove CPU limit metric
kathiehuang
committed
Remove CgroupStats struct
kathiehuang
committed
Rename Azure-specific files
kathiehuang
committed
Update comments
kathiehuang
committed
Guard CPU collection loop if cpu_collector is None
kathiehuang
committed
Add unit tests for LinuxCpuStatsReader logic
kathiehuang
committed
Add unit tests for CpuMetricsCollector logic
kathiehuang
committed
Move Unix timestamp capture to right after Instant capture
kathiehuang
committed
Minor refactor
kathiehuang
committed

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