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  "path": "/Articles/1073395/",
  "publishedAt": "2026-05-19T14:30:40.000Z",
  "site": "https://lwn.net",
  "tags": [
    "this_cpu\noperations",
    "Linux Storage,\nFilesystem, Memory Management, and BPF Summit"
  ],
  "textContent": "The kernel's this_cpu\noperations are meant to speed access to per-CPU variables. They are more optimal on some CPUs than others, though. During a memory-management-track session at the 2026 Linux Storage,\nFilesystem, Memory Management, and BPF Summit, Yang Shi proposed a fundamental, and somewhat controversial, change to how these operations work in order to provide better performance on a wider range of architectures.",
  "title": "[$] In search of faster this_cpu operations"
}