rdmbair15m5-changelog-20260822-0446-macos-sysctl-kernel-dashboard

Created DarwinSysctl (macOS 26.7+ & 27.0 Kernel Limits, sysctl Telemetry & Issue Drill-Down Studio) with live subsystem saturation dials, critical log error counters (EMFILE, SOMAXCONN, Jetsam), process blame attribution, and instant terminal remediation commands.

Scope

Host: rdmbair15m5 (Apple M5 · Darwin 27.0.0)
Directory: ~/Desktop/ & ~/Desktop/agy/

Exact files created / updated

~/Desktop/agy/macos_sysctl_kernel_dashboard_prd_v822.md & ~/Desktop/macos_sysctl_kernel_dashboard_prd_v822.md (Subsystem breakdown, Darwin kernel error codes, PID blame analysis, and sysctl tuning)
~/Desktop/agy/macos_sysctl_kernel_dashboard_studio_v822.html & ~/Desktop/macos_sysctl_kernel_dashboard_studio_v822.html (Interactive dashboard with live saturation dials, kernel error counters, PID drill-down, and 1-click terminal remediation)
~/Desktop/agy/index.html (Updated master portal)

Key Technical Systems Addressed

Live Kernel Saturation Telemetry: kern.maxfiles = 2.09M (0.5%), kern.maxproc = 8,000 (7.0%), kern.ipc.somaxconn = 128 (bottleneck warning), vm.swapusage = 445 MB used / 2048 MB allocated.
Critical Error Log Watchers: Tracks EMFILE (24), SOMAXCONN listen queue overflow, and Jetsam memory pressure kills.
PID Blame & Root Cause Drill-Down: Links kernel saturation to specific culprit processes (node, cfprefsd, com.apple.WebKit.WebContent, tccd) with instant copyable remediation scripts.

Verification Evidence

Verified valid Markdown and interactive HTML5 studio files created in ~/Desktop/ and ~/Desktop/agy/ and linked in index.html.