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With MGLRU and zRAM providing a safety net, enabling Large Page (2MB) support reduces TLB misses, allowing the CPU to prioritize emulation logic over memory address translation. Key Features Enabled File-System THP (CONFIG_READ_ONLY_THP_FOR_FS): Collapses read-only file mappings (game binaries/data) into huge pages to accelerate asset loading. Contiguous Page Table Entries (CONFIG_ARM64_CONTPTE): Allows the MMU to treat groups of pages as a single entry, increasing TLB efficiency on high-performance targets. Memory Compaction & Migration: Re-enabled infrastructure to shuffle physical RAM into contiguous blocks required for huge pages. Architecture-Specific Write Support (CONFIG_ARCH_WANT_PMD_MKWRITE): Ensures efficient huge page handling during high-performance memory writes. Tiered Userspace Management The rocknix-memory-manager applies specific logic at boot based on the SoC and RAM capacity: Flagship Mode (RK3588, SM8x, RK3399): Sets defrag to defer+madvise for proactive huge page creation. Sets vm.compaction_proactiveness to 40 to maintain a pool of contiguous blocks. Budget Mode (H700, RK3326): Sets defrag to defer only to prevent CPU "stalls" during gameplay. Sets vm.compaction_proactiveness to 10 to prioritize raw CPU availability. Texture Performance: Globally enables shmem_enabled=advise to benefit Vulkan and Wayland texture handling. Swappiness: Sets vm.swappiness to 100 when ZRAM is active to keep physical RAM unfragmented for huge page allocations. Safety Rationale MGLRU: Prevents "reclaim storms" during huge page allocation on 1GB devices. zRAM: Absorbs memory pressure via high-speed compressed swap. Read-Only Focus: FS-Backed THP targets low-risk mappings while providing high-impact gains for asset streaming.