sample_cpu_temperature() only ever had a Linux implementation, so
Windows and macOS runs recorded empty temperature data points for
every sample. sample_cpu_clock_mhz() on both platforms read a static
nominal frequency once (Windows: the ~MHz registry value; macOS: the
hw.cpufrequency sysctl) instead of a live reading, so clock speed
showed as a constant throughout the benchmark.
Windows: temperature now queries the ACPI thermal zone over WMI
(MSAcpi_ThermalZoneTemperature), and clock speed reads live per-core
frequency via CallNtPowerInformation(ProcessorInformation). Both are
XP-compatible (verified via mingw cross-compile with the existing
windows-i386 XP toolchain/PE checks).
macOS: temperature reads the SMC directly (AppleSMC user client),
checking known CPU sensor keys across Intel and Apple Silicon
(M1-M5). There is no live-frequency API on macOS at all (Apple
Silicon has none, and hw.cpufrequency was always a fixed nominal
value even on Intel), so clock speed now reports as unavailable
instead of a misleading constant.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PcL8rcwwBeD6W3fZFCRLss
owenandClaude Sonnet 5
ec7e75e105