The presentation walks through Linux’s bus, device, and driver architecture, covering concepts such as decoupling, unified interfaces, sysfs, class views, power management, ACPI matching, automatic module loading, and kernel objects like kobject, kref, and subsys, illustrating why the kernel is designed this way.
This article explains the hardware basis of NUMA, how Linux reads ACPI SRAT/SLIT tables to discover CPU‑memory topology, the kernel functions that initialize NUMA structures, and how tools like numactl can be used to optimize application performance on multi‑node servers.
This article explains how the Linux kernel discovers physical memory during boot by invoking the BIOS interrupt 0x15 with the E820 function, how firmware (ACPI) provides the memory map, and how the kernel stores, prints, and later manages those memory regions using e820 tables, memblock, and the buddy allocator.
This article explains the hardware basis of NUMA, how Linux reads ACPI SRAT and SLIT tables to discover CPU‑memory topology, the kernel functions that initialize NUMA structures, and how the memblock allocator incorporates this information to enable performance‑optimizing tools like numactl.
