Linux 7.2. : USB4STREAM, GPU, btrfs, xfs ext4, CPU i486, SCHED_EXT, , , Intel MBEC AMD GMET KVM, AppleTalk, HDMI 2.1 FRL AMDGPU.

7.2 (1, 2, 3):

• , /
  • iomap memset ۣ iomap_iter(), / NVMe ģ / (IOPS) 5% ext4 xfs.
  • XFS ( , ).
  • Btrfs (large folios), /. ("huge folios"), 2 . ioctl GET_CSUMS , , mkfs . 15% / 59%.
  • Ext4 "fast commit" . inode /proc/fs/ext4/*/fc_info. ( ͣ 255 , 64 27%, 32 - 11%).
  • F2FS fserror, . .
  • Device Mapper (DM) dm-inlinecrypt , inline-.
  • .
  • NFS 4 , 16 ( /proc/fs/nfsd/max_block_size). (directory delegation), ̣ .
  • SMB , , .
  • NTFS (ntfsplus) Windows .
  • ̣ fscache EROFS (Enhanced Read-Only File System), .
  • Ceph .
  • 9P , , .
  • file_getattr() ޣ . FS_XFLAG_CASEFOLD , ͣ ޣ , FS_XFLAG_CASENONPRESERVING , ͣ . NFS-, ޣ .
  • openat2() O_EMPTYPATH, . .
  • openat2() OPENAT2_REGULAR, ( , , , , EFTYPE).
• • USB4STREAM , Σ USB4. /dev/tbstreamX, , read() write() . , "echo hello > /dev/tbstream0", "cat /dev/tbstream0". USB4STREAM USB4 (thunderbolt_net) , .
  • i486. 13 , FPU. i486 CX8 ( 8 ) TSC (ޣ CPU, ), ̣.
  • (orphaned) AMD Geode, OLPC XO-1.
  • Intel TDX (Trusted Domain Extensions), . TDX runtime-, BIOS Flash- . .
  • GPU (Fair GPU scheduler), GPU , , GPU. FIDO- GPU , CFS (Completely Fair Scheduler) . , GPU.
  • eBPF: BPF- (tracepoint). BPF-, , , , (page fault). bpf() (log_buf, log_size, log_level log_true_size), BPF, BPF_PROG_LOAD, BPF_BTF_LOAD BPF_MAP_CREATE. 5 BPF. bpf_arena (page fault). BPF hash map, .
  • "/proc/interrupts" , ޣ .
  • "/proc/filesystems", libselinux.
  • CPU, . , , , , , ޣ .
  • SCHED_EXT, BPF CPU, (sub-scheduler), cgroup .
  • Rust-for-Linux, Rust ( Rust , Rust ). Rust s390. ޣ "zerocopy" "unsafe".
  • LLVM, , 17.0.1.
  • - nolibc, Linux , OpenRISC 32-bit PA-RISC.
  • (swap) , ޣ . , , 1 512 .
  • , ţ . , , MongoDB YCSB (Yahoo! Cloud Serving Benchmark), 30%.
  • "make sbom" SBOM (Software Bill Of Materials), , , , SPDX .
  • (pipe) ( ), 21-48% 17-33% .
• • slab (slab allocator) (Allocation Token), Clang 22. , ( ).
  • AF_ALG, Copy Fail , . AF_ALG Crypto API , . 7.2 AF_ALG /, zero-copy skcipher aead. , crypto API , AF_ALG , , . AF_ALG Cryptsetup, 2.8.7.
  • IMA (Integrity Measurement Architecture), , .
  • Landlock, Linux ( , , ioctl .), UDP-, .
  • strncpy(), . strncpy() - . strncpy() strscpy() strscpy_pad() , , strtomem_pad(), memcpy_and_pad() memcpy() . strncpy() 2020 362 70 .
  • KVM Intel MBEC (Mode-Based Execution Control) AMD GMET (Guest-Mode Execution Trap), . Intel AMD . MBEC GMET ϣ VMexit.
• • TCP-AO (TCP Authentication Option, RFC 5925) libcrypto, . TCP-AO TCP- MAC- (Message Authentication Code), HMAC-SHA-1-96 AES-128-CMAC-96 TCP-MD5 MD5.
  • , Multipath TCP (MPTCP), 8 64.
  • rtnl_lock.
  • AppleTalk, Apple 1985 1990- Σ TCP/IP. ATM, PPPoATM, c ARCnet ISA PCMCIA, Bluetooth- PCMCIA, TLS- Chelsea, TLS sockmap 5/10 MHz cfg80211/mac80211. - TLS TCP Offload Engine ( Σ TLS offload ). ޣ 32- x_tables 64- .
  • pppoe GRO (Generic Receive Offload) GSO (Generic Segmentation Offload) . GRO GSO , , MediaTek MT7621 130 Mbit/s 630 Mbit/s.
• • AMDGPU HDMI 2.1 FRL (Fixed Rate Link), 4K/120Hz 8K/60Hz. HDMI 2.1 - HDMI Forum, AMD .
  • i915 . pin_params.needs_low_address.
  • drm- (Direct Rendering Manager) Xe GPU Intel Xe, Intel Arc , Tiger Lake. CRI (Crescent Island). dGPU- Xe3p .
  • Nouveau GPU NVIDIA GA100.
  • v3d v3D GPU Raspberry Pi.
  • Nova GPU NVIDIA, ݣ GSP-, NVIDIA GeForce RTX 2000 Turing. Rust. GPU NVIDIA GA100 Hopper Blackwell.
  • ARM-, SoC : Apple t8122 (M3), Motorola Edge 30, Nothing Phone 3a, Google Pixel 3a XL, Qualcomm Dragonwing IPQ9650, Huawei Hawi, ZTE zx297520v3, Renesas R-Car M3Le, ASPEED AST27xx, Cortina Gemini, NXP i.MX6/8/9, NXP LX2160A, TI K3 AM62x.