Code

add timestamp-sorted perf ring reader#77

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yonch merged 33 commits intounvariance:mainunvariance/collector:mainfrom yonch:mainyonch/memory-collector:mainCopy head branch name to clipboardFeb 21, 2025

+2,056-149

Commits

Commits on Feb 21, 2025

• add initial perf ring package

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• fix build after moving go.mod to root

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• fix cpi-count build after moving go.mod to root

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• add ring storage: memory and mmap

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• perf: Add error constants for ring buffer operations

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• ci: add golang package tests

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• add permissions to the perf event tests in storage.go

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• enable manual launching of go tests

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• use -race flag when building the test

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• set perf_event_paranoid to enable perf

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• only run the other package tests if those tests are not empty

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• run workflow on changes to the CI workflow

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• fix checking Pop for errors

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• devcontainer: add the golang language server

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• perf: Add reader implementation with multi-ring event sorting

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• update golang linter action to latest version

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• fix linter errors in reader_test.go

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• fixed missed linter error

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• Add eBPF perf map reader with tests and workflow update

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• Update perf test workflow to separately compile and run perf and perf_ebpf tests

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• remove memlock in reader_test.go

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• gitignore: add macOS generated files

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• ci: add cap_bpf to perf_ebpf tests

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• ci: fix capability string

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• use right size of file descriptor for setting ebpf.Map

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• fix lint error (check return value)

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• Refactor collector main to use new perf map reader

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• account for u32 size element on PERF_SAMPLE_RAW in ring

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• remove verbose printing of received perf ring messages

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• Add CPU ID tracking to perf reader and event logging

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• add timestamp in collector verbose prints

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• add barrier timestamp to improve event ordering

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• fix large timestamp deltas at ebpf program start

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