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Douglas Teles
85325f88a3
Kernel config hardening: - FRAME_POINTER=n: Saves 3-5% CPU overhead on ARM64 (wastes registers) - DEBUG_FS=n: Remove debugfs mount (memory + attack surface) - IKCONFIG=n: Save 100-300KB (kernel config in /proc not needed in production) Mesa/Panfrost: - Add persistent shader cache (MESA_SHADER_CACHE_DIR + 128MB max) Avoids shader recompilation on every emulator launch I/O scheduler: - Enhanced BFQ udev rule: low_latency=1, read_ahead=2048KB, nr_requests=128 Reduces ROM loading stutter on microSD Sysctl: - Add vm.dirty_expire_centisecs=3000 (dirty pages expire after 30s) - Add vm.page-cluster=0 (single-page swap for ZRAM, instant swap-in) Infrastructure: - Create tools/audit-build.sh: comprehensive production build audit script Checks kernel debug flags, Mesa env vars, binary stripping, emulator build types, system state, active services Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>