v0.25.1

This release is a small improvement over v0.25.0 which improves performance and lowers/removes large memory spikes.

Changelog

Fixes

• *: Add more CPU profiler metrics by @kakkoyun in #2041
• bpf: rate limit events by @javierhonduco in #2040
• pkg/process: Only keep executable mappings by @brancz in #2050
• unwinder/native: Accomodate larger program due to rate limits by @javierhonduco in #2059
• deps: Upgrade prometheus/procfs by @javierhonduco in #2061

Breaking changes

--verbose-bpf-logging is now --bpf-verbose-logging

Full Changelog: v0.25.0...v0.25.1

Docker images

docker pull ghcr.io/parca-dev/parca-agent:v0.28.0

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v0.25.0

Changelog

Features

• BPF: Add DWARF Unwinding for Arm64 by @Sylfrena in #2023

Fixes

• objectfile: Remove panics by @kakkoyun in #2032
• pkg/cache: Fix data races by @javierhonduco in #2031

Enhancements

• Reduce size of object pool by @javierhonduco in #2028
• Add panic reporting by @javierhonduco in #2026

Full Changelog: v0.24.0...v0.25.0

Docker images

docker pull ghcr.io/parca-dev/parca-agent:v0.25.0

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v0.24.0

Changelog

Features

• Add initial Ruby support by @javierhonduco in #1933
• Add initial Python Support by @kakkoyun in #1984
  • Extend Python version support by @kakkoyun in #2019
• pkg/stack/unwind: Add unwind tables support for Arm64 by @Sylfrena in #1953
• Add support for parsing v8 symbols by @brancz in #2021

Fixes

• pkg/convert: Fix locations by @zdyj3170101136 in #1905
• Fix warning by @Sylfrena in #1910
• fix(cache): ensure LoadingOnceCache can only load once by @maxbrunet in #1998

Enhancements

• Ensure we are running under root by @javierhonduco in #1992
• Detect the agent running in a non-root PID namespace by @javierhonduco in #1993
• unwinding: Move compact unwind table generation by @javierhonduco in #1958
• pkg/perf: More robust perf map parsing by @brancz in #1994
• Don't perform address normalization locally by @brancz in #1928
• added VDSO unit tests by @Namanl2001 in #1916
• pkg/metadata: provide jdk label by @zdyj3170101136 in #1926
• tests: Add integration tests for mixed-mode unwinding by @javierhonduco in #1943
• test/integration: Ensure we don't leak goroutines by @javierhonduco in #1960

Full Changelog: v0.23.3...v0.24.0

Docker images

docker pull ghcr.io/parca-dev/parca-agent:v0.24.0

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v0.23.3

Changelog

Fixes

• fix: "BPF program too large" error in kernel release 6.4 and greater by @javierhonduco in #1908
• deploy: Remove liveness probe by @brancz in #1876
• pkg/mapping: Add more patterns for mappings not to open by @brancz in #1896
  pull/1898

Improvements

• feature/convert: Add filename and support native method by @zdyj3170101136 in #1846
• pkg/runtime: Prevent allocations from searching symbol tables by @brancz in #1901
  parca-agent/pull/1903
• pkg/cpu: Reduce .text section error spam by @Sylfrena in #1864
• pkg/convert: reduce allocation by @zdyj3170101136 in #1886
• test: Add 6.1 kernel to tests by @javierhonduco in #1894
  /pull/1895
• Delightful logs by @Sylfrena in #1879

Full Changelog: v0.23.2...v0.23.3

Docker images

docker pull ghcr.io/parca-dev/parca-agent:v0.23.3

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v0.23.2

Changelog

Fixes

• Fix only reporting profiling data of a single thread of a process per profiling cycle by @brancz in #1874

Full Changelog: v0.23.1...v0.23.2

Docker images

docker pull ghcr.io/parca-dev/parca-agent:v0.23.2

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v0.23.1

Changelog

Fixes

• Fix processes not being able to be unwinded, which is accidentally caused by not having symbol tables by @brancz in #1867

Enhancement

• Add metadata to identify Python and Ruby processes by @kakkoyun in #1868

Full Changelog: v0.23.0...v0.23.1

Docker images

docker pull ghcr.io/parca-dev/parca-agent:v0.23.1

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v0.23.0

Changelog

Features

• Add thread id and thread name as pprof label by @kakkoyun in #1837

Enhancements

• bpf: Add metrics pertaining to JITed unwinding by @Sylfrena in #1858
• cmd/parca-agent: Bind debug endpoint to localhost only by default by @brancz in #1860
• Do not use global tracer provider by @kakkoyun in #1835

Full Changelog: v0.22.0...v0.23.0

Docker images

docker pull ghcr.io/parca-dev/parca-agent:v0.23.0

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v0.22.0

Changelog

Fixes

• Use frame pointer unwinding for v8-based applications by @javierhonduco in #1836
• grpc/conn: Introduce exponential backoff retry with jitter for unary requests by @kakkoyun in #1826
• Make archive names linux uname -m compatible by @kakkoyun in #1830

Misc

• ci: Run vmtests before go-build tests by @Namanl2001 in #1814
• build: Clean generated BPF object files by @javierhonduco in #1824
• deploy/jsonnet: Make PSP optional by @kakkoyun in #1823
• chore(deploy/e2e): clean up PSP hacks by @maxbrunet in #1839
• deploy: Make default namespace independent by @brancz in #1847
• cmd/parca-agent/main.go by @brancz in #1843

Full Changelog: v0.21.0...v0.22.0

New Contributors

• @Namanl2001 made their first contribution in #1814

Docker images

docker pull ghcr.io/parca-dev/parca-agent:v0.22.0

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v0.21.0

Changelog

Features

• Enable arm64 unwinding with frame pointers by @javierhonduco in #1805

Improvements

• Always include all architectures of BPF programs by @brancz in #1809
• *: Fix arm64 builds to choose correct BPF file by @brancz in #1807

Fixes

• Fix JITDump symbolization edge-case by @brancz in #1812
• use error.As() by @Sylfrena in #1810
• Increase default object file pool size and improve error by @brancz in #1800

Misc

• ci(release): update latest tag by @maxbrunet in #1787
• Add analytics by @brancz in #1803

Full Changelog: v0.20.0...v0.21.0

Docker images

docker pull ghcr.io/parca-dev/parca-agent:v0.21.0

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v0.20.0

This Parca Agent release includes three main additions:

1. Improved support for short lived processes.
2. Add support for unwinding mixed stacks (JIT/DWARF/frame-pointer).
3. Various metadata stability improvements.

Apart from these dozens of parca Agent performance improvements landed.

Happy profiling!

— Parca Maintainers

Changelog

• Add Go package to interact with libasyncprofiler by @v-thakkar in #1512
• chore: Disable deprecated linters by @v-thakkar in #1601
• pkg/asyncprofiler: Refactor NewAsyncProfiler to use functional options by @v-thakkar in #1603
• Overhaul process info discovery by @kakkoyun in #1507
• local dev/testing: Add missing dependencies for local tilt test setup by @kakkoyun in #1610
• pkg/asyncprofiler: Fix options format in SetAction by @v-thakkar in #1609
• *: Fetch labels at the first encounter with a process by @kakkoyun in #1611
• chore(container): add commit timestamp to image tag by @maxbrunet in #1621
• cpu.go: Show error if there's an error loading the BPF code by @javierhonduco in #1620
• Upgrade libbpfgo to 80f41e18e690 by @javierhonduco in #1622
• Profile correctness tests by @javierhonduco in #1627
• tests: Move integration tests to their own dir by @javierhonduco in #1629
• chore: Remove exclude-rules for the arguments pkg by @v-thakkar in #1630
• *: Remove retry limit and fix race conditions around ObjectFile by @kakkoyun in #1623
• pkg/perf: Optimize perf map parsing by @brancz in #1650
• build(container): add metadata labels by @maxbrunet in #1656
• internal/pprof: Remove unused vendored pprof packages by @javierhonduco in #1652
• Do not normalize addresses from JIT'd code by @javierhonduco in #1651
• tests/integration: Improve assertions by @javierhonduco in #1660
• deploy/tilt(dev): Add and configure kube-prometheus for local dev cluster by @kakkoyun in #1661
• *: Fix metadata caching issues by @kakkoyun in #1653
• Bump github.com/docker/distribution from 2.8.1+incompatible to 2.8.2+incompatible by @dependabot in #1636
• pkg/perf: Reduce allocs in ReadMap when parsing a large file by @marselester in #1669
• pkg/discovery: Handle multi-target discovery groups properly by @kakkoyun in #1682
• main: Add pprof config flags by @kakkoyun in #1683
• metadata/debuginfo: Add a flag to disable caching for metadata and debuginfo components by @kakkoyun in #1685
• pkg/cpu: Fix variable shadowing of error value by @Sylfrena in #1688
• *: Add inital tracing support using OTel (local testing using jaeger) by @kakkoyun in #1684
• *: Remove unbounded caches by @kakkoyun in #1672
• *: Add metrics, everywhere by @kakkoyun in #1634
• chore(local-observability): use release container image tags by @maxbrunet in #1700
• bpf: Add mixed-mode unwinding for JIT sections by @Sylfrena in #1670
• Use libbpf's cpu number helper by @javierhonduco in #1709
• objectfile: Fix concurrent read and premature close issues by @kakkoyun in #1689
• go.*/gprc: Upgrade grpc middlewares by @kakkoyun in #1715
• *: Add native histograms by @kakkoyun in #1717
• Enable native histograms for local promethei by @kakkoyun in #1718
• *: Separate obtaining raw data and pprof conversion by @brancz in #1716
• pkg/maps: Don't report not ELF errors by @brancz in #1724
• Disable RPC logging by default by @kakkoyun in #1725
• Use more conventional naming by @kakkoyun in #1728
• grpc: Fix codec issue causes kubernetes metadata problems by @kakkoyun in #1729
• pkg/process: Save whether mapping contains debuginfo to upload by @brancz in #1730
• pkg/profiler/cpu: Prevent creating unnecessary closure by @brancz in #1731
• bpf: enable JIT unwinding by default by @Sylfrena in #1727
• Refactor converter component by @kakkoyun in #1734
• *: Introduce lightweight LRU cache and use in hotpaths by @brancz in #1732
• debuginfo/manager: Exclude the time to wait for goroutines turn by @kakkoyun in #1739
• fix(config): fix reloading config from Kubernetes ConfigMap by @maxbrunet in #1735
• buildid: Simplify and optimize build id extraction by @kakkoyun in #1740
• pkg/process: Ensure debuginfo is uploaded by @brancz in #1743
• pkg/process: Filter mappings to only consider executable sections by @brancz in #1745
• pkg/process: Fix race by @brancz in #1746
• *: Remove 3rd-party multi-error packages by @kakkoyun in #1755
• tests/integration: enable in CI by @javierhonduco in #1758
• tests/integration: Fix stackContains by @javierhonduco in #1763
• cpu/process info: Reject inflight requests by @kakkoyun in #1765
• *: Remove burrow.Cache use cache.LRU instead by @kakkoyun in #1760
• maps/vdso: Simplify Base Address calculation by @kakkoyun in #1768
• Upgrade ainur by @kakkoyun in #1771
• *: Simplify ObjectFile life-cycle by @kakkoyun in #1770
• *: Avoid constant recreation of goroutines by @kakkoyun in #1759
• Use puzpuzpuz/xsync instead of sync.Map by @kakkoyun in #1772
• Improve Process Info cache performance by @kakkoyun in #1773
• Add a flag to configure RPC unary timeout by @kakkoyun in #1775
• Add a flag to control object file pool size by @kakkoyun in #1776
• Do not cache process info if we failed to read a mapping by @kakkoyun in #1777
• Add flags to control perf event buffer event handling by @kakkoyun in #1778

Full Changelog: v0.19.0...v0.20.0

Docker images

docker pull ghcr.io/parca-dev/parca-agent:v0.20.0

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