We have improved the Linux page fault mechanism to reduce the number of faults and handle them more quickly when they do happen. By managing memory in large folios, we reduce the number of page faults. The 4KiB page used on many architectures is simply too small for...
Having a dynamically-sized trailing array at the end of a structure is a popular code construct in the Linux kernel. However, trailing arrays can also be of a fixed size, which means that their size is well-defined at compile-time and remains fixed throughout their...
The Rockchip RK3588 system-on-chip (SoC) is an impressive flagship with 8 ARM cores (4x A76, 4x A55), plenty of cache, and a vast amount of peripherals. Among other things this SoC has an Arm G610 Mali GPU, multiple PCIe lanes, hardware video decoders and encoders...
This talk will present a high-level overview of the hardware structure of modern computer systems, and then will use this structure to show how the laws of physics put limitations on the design and implementation of concurrent software. Venue permitting, it will...
What makes an apparently good patchset fail? Despite the fact it hasn’t been applied, did you know that working on this patchset might have actually been a great benefit for you and the kernel? A necessary step even? Sometimes we involve into an idea that looks good...
