memory

• 28 Oct 2026 · linux, memory, processos · 4 min

  How do you measure a process's memory for real?

  RSS is not what the cgroup charges. Learn to read PSS, USS, and memory.current to know a process's real cost.

• 10 Oct 2026 · memory, linux, performance · 4 min

  Compressing memory in hardware, against zstd in software

  Meta proposed compressing RAM in hardware to save CPU. I timed zstd at three levels: decompression costs about the same at all of them, and that is the number that matters.

• 09 Oct 2026 · hardware, infrastructure, memory · 4 min

  RAM is 500% more expensive: what the memory audit of this VM shows

  With DDR5 up to 500% pricier in 12 months, I measured where the 5.8 GB of this VM go. zram holds 3.4 GB in 779 MB of RAM, and swap has moved more than 100 GB since boot.

• 05 Oct 2026 · memory · 2 min

  zram on a 5.8 GB server: what the measurement showed

  A comparison of two vm.swappiness values under a controlled load, with the measured numbers.

You reached the end. Every post is here.