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

Thanks!

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