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subhobhai943andClaude Opus 4.8
5bd18c4733
Kernel (C++17 freestanding):
- New Analytics Engine (kernel/cpp/cpp_analytics.cpp): templated rolling
time-series (TimeSeries<N>) sampling four live channels -- CPU load %,
memory %, kernel-heap %, network pkt/interval -- with windowed statistics
(min/max/mean/stddev) computed in pure integer math (kernel is -mno-sse, so
no FP; stddev uses a Newton integer isqrt). Demonstrates virtual dispatch
via an Observer pattern (IAnalyticsObserver + a ThresholdAlarmObserver that
counts breaches) and RAII singletons.
- Extended cpp_containers.hpp with Optional<T>, Pair<A,B>, and the kmin/kmax/
kclamp/kswap algorithms.
- Full C fallback (cpp_fallback.c) so the engine is functionally identical on
aarch64/armv8i, which don't build the .cpp path.
- Wired cpp_analytics_init() into boot [8/14]; seeds a few samples so graphs
are populated immediately.
GUI:
- New "Analytics" desktop app (gui/gui_apps.c): a 2x2 grid of live line-charts
backed by the C++ engine, each with gridlines, a soft baseline fill, and
min/avg/max(/stddev) overlays; click a panel to focus one channel full-size,
click again to return. Throttled to ~2 Hz sampling off the compositor's
repaint cadence. Registered on the desktop and in the start menu.
Userland: new `cppstat [samples]` applet dumps the engine's per-channel stats
and Observer breach counters.
Verified in QEMU (x86_64): boots clean on x86_64/aarch64/armv8i; `cppstat`
prints live stats (CPU 6%, Mem 7%, Heap 22%, computed min/avg/max/stddev,
Observer breaches); the GUI Analytics window renders all four graphs with the
Kernel Heap curve visibly climbing 22->55% as windows open, compositor steady
at ~53 FPS.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX