https://www.pistack.xyz/tags/zram/ Recent content in Zram on Pi Stack Hugo en-us Fri, 29 May 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-05-29-self-hosted-linux-compressed-swap-management-zram-generator-systemd-swap-zramd-guide/ Fri, 29 May 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-05-29-self-hosted-linux-compressed-swap-management-zram-generator-systemd-swap-zramd-guide/ <p>Memory pressure is one of the most common causes of server instability. When a Linux server runs out of RAM, the kernel invokes the OOM (Out of Memory) killer, terminating processes to free memory. Before reaching that point, the kernel uses swap space — either a swap partition/file on disk, or compressed RAM via zram. This guide compares three tools for managing compressed swap on Linux: <strong>zram-generator</strong> (systemd-native), <strong>systemd-swap</strong> (hybrid swap manager), and <strong>zramd</strong> (simplified zram automation).</p>