system_resources_2 2.2.1

Provides easy access to system resources (CPU load, memory usage).

2.2.1

• Log warning to stderr when running on Windows or other unsupported platforms

2.2.0

Pure Dart on Linux

• Hybrid architecture: Linux now uses pure Dart (reading /proc and cgroup filesystems directly), eliminating the need for native .so binaries. macOS continues to use FFI with native .dylib binaries.
• Removed Linux native binaries: libsysres-linux-*.so files are no longer shipped, reducing package size and improving compatibility across Linux architectures.

Cgroup v1 Support

• Cgroup v1 (legacy hierarchy): CPU and memory monitoring now works on systems using cgroup v1 in addition to cgroup v2.

New APIs

• cgroupVersion() - Returns detected cgroup version (v1, v2, or none)
• cpuLoad() - CPU load as a fraction of the cgroup limit (delta-based)
• cpuUsageMillicores() - CPU usage in millicores (delta-based)
• cpuUsageMicros() - Raw cumulative CPU usage in microseconds
• cpuLimitMillicores() - CPU limit in millicores
• clearState() - Clears all cached platform/CPU state (useful for testing)
• New exported enums: CgroupVersion, DetectedPlatform

Bug Fixes

• Resolve process's actual cgroup path for memory metrics on native Linux hosts
• Unify CPU load normalization to respect SYSRES_CPU_CORES environment variable
• Use DynamicLibrary.open directly instead of File.existsSync for better compatibility
• Improve native library compatibility with older glibc versions

2.1.1

• Fix package directory structure to follow Dart conventions (rename docs/ to doc/)

2.1.0

Container-Aware Features

• Container detection: Automatically detects container environments using cgroups v2
• New functions:
  • isContainerEnv() - Returns true if running in a container with cgroups v2
  • cpuLimitCores() - Returns CPU limit in cores (container limit or host cores)
  • memoryLimitBytes() - Returns memory limit in bytes
  • memoryUsedBytes() - Returns memory currently used in bytes
• Auto-detection: cpuLoadAvg() and memUsage() now automatically use container limits when available

Requirements

• Kubernetes 1.25+ (cgroups v2 is default)
• Non-k8s environments must have cgroups v2 enabled

Known Limitations

• gVisor: CPU monitoring not supported (always returns 0). Memory monitoring works correctly.

1.6.0

• https://github.com/jonasroussel/system_resources/pull/2

1.5.0

• Adding darwin-arm64 (Mac M1) to support list

1.4.2

• Support for linux-armv7l
• Better README.md

1.4.1

• Fixing linux negative memory

1.4.0

• Improve linux memory usage (substract buffers & cached)

1.3.0

• Improve linux memory usage
• Adding linux-aarch64 to support list

1.2.0

• Improve linux cpu load average
• Better cpu arch detection

1.1.0

• Improve macos cpu load average

1.0.0

• First version with every based features