cachyos-sources

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Versions & arches

Use flags of 7.1.4-r1

• +bore CachyOS Scheduler (BORE - Burst-Oriented Response Enhancer), optimized for desktop responsiveness
• bmq Project C BMQ (BitMap Queue) scheduler, alternative CPU scheduler with different performance characteristics
• rt EEVDF scheduler with realtime patches for low-latency applications
• rt-bore BORE scheduler with realtime patches for low-latency applications
• eevdf Default Linux EEVDF (Earliest Eligible Virtual Deadline First) scheduler
• deckify Enable patches for handheld devices like Steam Deck (includes WiFi, ACPI, and handheld-specific patches)
• kcfi Enable kCFI (Kernel Control Flow Integrity) for additional security protection
• +autofdo Enable Clang AutoFDO (Automatic Feedback-Directed Optimization) support for profile-guided optimization
• +propeller Enable Clang Propeller optimization (basic block reordering) for better performance
• +llvm-lto-thin Enable LLVM thin LTO (Link Time Optimization) - uses multiple threads, faster compilation, less memory usage
• llvm-lto-full Enable LLVM full LTO - single threaded, slower compilation, more memory usage, potentially highest performance
• llvm-lto-thin-dist Enable LLVM thin LTO with distributed model rather than in-process linking
• llvm-lto-none
• kernel-builtin-zfs Build ZFS module directly into the kernel (not recommended, use sys-fs/zfs-kmod instead)
• hz_ticks_100 Set kernel timer frequency to 100 Hz (server/battery optimized)
• hz_ticks_250 Set kernel timer frequency to 250 Hz (balanced)
• hz_ticks_300 Set kernel timer frequency to 300 Hz
• hz_ticks_500 Set kernel timer frequency to 500 Hz
• hz_ticks_600 Set kernel timer frequency to 600 Hz
• hz_ticks_750 Set kernel timer frequency to 750 Hz
• +hz_ticks_1000 Set kernel timer frequency to 1000 Hz (desktop optimized, default)
• +per-gov Set CPU frequency performance governor as default instead of schedutil
• tickrate_periodic Use periodic ticks (traditional approach)
• tickrate_idle Use idle tickless mode (NO_HZ_IDLE)
• +tickrate_full Use full tickless mode (NO_HZ_FULL) - can provide higher performance but lower consistency depending on hardware
• +preempt_full Full preemption model for lowest latency (PREEMPT)
• preempt_lazy Lazy preemption model (PREEMPT_LAZY)
• +o3 Enable KBUILD_CFLAGS -O3 optimization for maximum performance
• os Optimize for size (-Os) instead of performance
• debug Enable debug-friendly optimizations and disable various debug features
• +bbr3 Enable TCP BBR3 (Bottleneck Bandwidth and RTT) congestion control algorithm as default
• +hugepage_always Always enable Transparent Huge Pages for better memory performance
• hugepage_madvise Enable Transparent Huge Pages only when requested via madvise
• mgeneric Use generic x86-64 optimizations (default kernel optimizations, portable across machines)
• mgeneric_v1 Use x86-64-v1 generic optimizations (baseline x86-64)
• mgeneric_v2 Use x86-64-v2 generic optimizations (requires CMPXCHG16B, LAHF-SAHF, POPCNT, SSE3, SSE4.1, SSE4.2, SSSE3)
• mgeneric_v3 Use x86-64-v3 generic optimizations (requires AVX, AVX2, BMI1, BMI2, F16C, FMA, LZCNT, MOVBE, XSAVE)
• mgeneric_v4 Use x86-64-v4 generic optimizations (requires AVX512F, AVX512BW, AVX512CD, AVX512DQ, AVX512VL)
• +mnative Use compiler native CPU autodetection optimizations (recommended for local builds, not portable)
• mzen4 Use AMD Zen 4 specific optimizations (znver4) for AMD Ryzen 7000 series and newer