5.3.0 - 2026-09-07

Release Notes

This release adds physical memory profiling in memtrack. The feature can be enabled/disabled using the --experimental-memory-track-physical CLI option.

codspeed exec -m memory --experimental-memory-track-physical -- <your_cmd>
# or:
CODSPEED_MEMTRACK_TRACK_PHYSICAL=1 codspeed exec -m memory -- <your_cmd>

🚀 Features

• Add --memory-track-physical experimental flag by @not-matthias
• Fail early when the kernel has no BTF by @not-matthias in #524
• Add --track-allocators toggle for memory mode by @not-matthias in #469
• Log which authentication method the run uses by @fargito in #521
• Apply kernel memory tunables before memory-mode runs by @not-matthias

🐛 Bug Fixes

• Silence dead-code lint on non-Linux for memory_track_physical by @not-matthias in #529
• Restore profiling sysctls by @not-matthias in #507

🏗️ Refactor

• Take TrackerOptions in the loading entry points by @not-matthias in #526
• Rename track-rmap toggle to track-physical by @not-matthias
• Extract kernel_release helper by @not-matthias
• Move linux_sysctl into executor helpers by @not-matthias

⚙️ Internals

• Pin memtrack 1.5.0 (#530) by @adriencaccia in #530

Install codspeed-runner 5.3.0

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/CodSpeedHQ/codspeed/releases/download/v5.3.0/codspeed-runner-installer.sh | sh

Download codspeed-runner 5.3.0

File	Platform	Checksum
codspeed-runner-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
codspeed-runner-aarch64-unknown-linux-musl.tar.gz	ARM64 MUSL Linux	checksum
codspeed-runner-x86_64-unknown-linux-musl.tar.gz	x64 MUSL Linux	checksum