Timing Sources

Timing sources extract entropy from clock drift, scheduling jitter, and memory latency variability.

Sources

• clock_jitter — PLL phase-noise differences across clocks
• dram_row_buffer — row-hit/miss latency variability
• page_fault_timing — page-fault handling latency variation
• mach_continuous_timing — macOS continuous-time path jitter
• commpage_clock_timing — COMMPAGE seqlock update timing
• ane_timing — ANE clock-domain crossing timing
• mach_timing — high-resolution timer jitter

Notes

These sources are strong for fine-grained micro-timing behavior but should be evaluated with forensic + chaos metrics before operational use.