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• Linux 社区游记

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• One More Thing ….. 🙂

• CPU Family

• SYSTEM BUS

  • Intel® FSB/BSB

  • Intel® QPI

  • Intel® UPI

  • AMD Infinity Fabric

  • Intel® RingBus

  • Intel® Mesh

• Register

• DDR(DDR4/DDR5)

• CACHE(L1/L2/L3)

• STORE BUFFER

• TLB(Translation Lookaside Buffer)

• Memory Interleaving 🙂

• 计算机硬件科普视频

• 计算机维修 DIY HOBBY

• MAKING SOFTWARE 🙂

• Physical Address Space Manager

  • Physical Memory

  • UMA/NUMA

  • ZONE

  • PageTable

  • Page/Folio

  • HugePage

• Memory Allocator

  • Intel® X86 Architecture

    • X86_64 启动流程之内存初始化

    • Detecting Memory from CMOS [X86]

    • Detecting Memory from BDA [X86]

    • Detecting Memory from BIOS IVT [X86]

    • Detecting Memory from CMDLINE

    • E820 内存管理器 [X86]

    • Static Compile Memory Allocator

    • RESERVE_BRK Allocator [x86]

    • Early_Res Allocator [x86]

  • ARM Architecture(规划中)

  • RISCV Architecture(规划中)

  • Early IO/RSVD-MEM Allocator

  • Bootmem Allocator

  • MEMBLOCK Allocator

  • Buddy Memory Allocator

  • PCP Memory Allocator

  • PERCPU Memory Allocator

  • SLAB Memory Allocator

  • SLUB Memory Allocator

  • SLOB Memory Allocator

  • VMALLOC Memory Allocator

  • KMAP Memory Allocator

  • Fixmap Memory Allcator

  • CMA: Contiguous Memory Allocator

  • Permanent Mapping Memory Allocator

  • IOREMAP MMIO Memory Allocator

  • MEMREMAP Temporary Memory Allocator

  • MODULE Memory Allocator

  • DMA Memory Allocator

  • PMEM Memory Allocator

  • DMA-Pool Memory Allocator

  • ZSMALLOC Memory Allocator

  • 用户空间分配器

    • GLIBC/LIBCL: malloc/mallopt

    • 堆分配器: BRK/SBRK

    • jemalloc

    • tcmalloc

    • ptmalloc

• Virtual Address Space Manager

  • Linux Virtual Memory Space Map 🙂

  • Linear Mapping Technology

  • Kernel Large Virtual Memory Block Technology

  • MMIO/IOPORT Mapping Technology

  • Kernel Temporary Mapping Technology

  • Kernel Permanent Mapping Technology

  • Anonymous Mapping Memory

  • File-Mapping Memory

  • Shared Memory

  • THP(Transparent Huge Pages Technology)

  • HugeTLB(Huge Translation Lookaside Buffer Technology)

  • DAX Mapping Technology

  • FILE-DAX Mapping Technology

  • FPN(No-Page) Mapping Technology

  • PageFault Exception

  • COW(Copy-on-Write)

  • ZERO Page Technology

  • ZERO COPY Technology

  • GUP(Get User Page) Mechanism

  • REVERSE Mapping Mechanism

  • KSM(Kernel Samepage Merging)

  • Memory Hotplug Mechanism

  • Memory Migration Mechanism

  • Memory Compact Mechanism

  • Memory Reclaim Mechanism

  • Memory Swap Mechanism

  • Memory Compress Mechanism

  • Memory Shrink Mechanism

  • Memory Scan Mechanism

• Memory Diagnostic/Sanitizers Tools

  • Live/offline Crash Tools

  • Memory Statistical tools

  • GUN GCC Address/Memory/Leaks Sanitizers (ASAN)

  • KASAN/KMEM

  • 内存泄露

  • 内存压测工具

  • Memory UCE

  • OOM Mechanism

  • Memory RAS[Updating]

• PCI(Peripheral Component Interconnect)

• PCIe(Peripheral Component Interconnect Express)

• CXL(Compute Express Link)

• HMM(Heterogeneous Memory Management)

• I/O Space

• MMIO(Memory-Mapped I/O)

• DMA(Direct Memory Access)

  • Coherent DMA

  • Streaming DMA

  • DMA-BUF

  • DMA Pool

  • CMA

  • SWIOTLB

• RDMA(Remote Direct Memory Access)

• SGDMA(Scatter-Gather Direct Memory Access)

• IOMMU(Input-Output Memory Management Unit)

• VFIO(Virtual Function I/O)

• P2PDMA(Peer-to-Peer Direct Memory Access)

• NUMA(Non-Uniform Memory Access)

  • LOCAL MEMORY

  • REMOTE MEMORY

  • NUMA BALANCING

• HBM(High Bandwidth Memory)

• DEVICE MEMORY

  • DAX(Direct Access)

  • FSDAX(File System Direct Access)

  • DIRECT-IO

  • BUFFER-IO

  • DEVICE ZONE

  • HBM/GDDR

  • VRAM

• TIERED MEMORY Technology

• NVDIMM/PMEM(Persistent Memory)

• GPU

  • NVLINK

  • NV SWITCH

• NPU/xPU

• ZERO COPY Optimization

• NUMA BLANCING/SCHEDULE Optimization

• PARALLEL Optimization

• Algorithm Visualization

• Classic Kernel Data Structures

  • Classic Linked list

  • Red-Block Tree

  • Xarray

  • Radix Tree

  • Hash list

  • Hash Table

  • Interval Tree

• Performance Analysis Tools