Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base


[$] Improving access to physically contiguous memory

For years, kernel developers have been told to avoid allocating large chunks of physically contiguous memory; as the system runs and memory becomes fragmented, satisfying such allocations becomes increasingly difficult. But, as Zi Yan pointed ou… Continue Reading — [$] Improving access to physically contiguous...


Cloudy with a chance of chameleons

Last week, Denver hosted the very first Open Infrastructure Summit. Over 2,000 attendees from all around the world visited the Colorado Convention Centre with an express aim to collaborate, network, share and learn (and maybe pick up some swag from the sponsors!). The infamously unstable Colorado...


[$] Alignment guarantees for kmalloc()

kmalloc() is one of the kernel’s fundamental memory-allocation primitives for relatively small objects. Most of the time, developers don’t worry about the alignment of memory returned from kmalloc(), and things generally just work. But, Vlasti… Continue Reading — [$] Alignment guarantees for kmalloc()


[$] Taking ZUFS upstream

At the 2018 Linux Storage, Filesystem, and Memory-Management Summit (LSFMM), Boaz Harrosh introduced the ZUFS filesystem. At this year’s event, he was back to talk about what it would take to merge ZUFS into the mainline. ZUFS, which Harrosh … Continue Reading — [$] Taking...


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