Nowadays database requires about 1GB of RAM.
# Enable non-blocking (multi-threaded/concurrent) database reloads. # This feature will temporarily load a second scanning engine while scanning # continues using the first engine. Once loaded, the new engine takes over. # The old engine is removed as soon as all scans using the old engine have # completed. # This feature requires more RAM, so this option is provided in case users are # willing to block scans during reload in exchange for lower RAM requirements. # Default: yes ConcurrentDatabaseReload no </conf> ==== limit systemd service ==== Limit RAM to 1GB. Rest will be swapped out. <code bash> systemctl edit clamav-daemon.service </code> <file conf /etc/systemd/system/clamav-daemon.service.d/override.conf> [Service] MemoryLimit=1024M Nice=19 Restart = on-failure
systemctl daemon-reload systemctl restart clamav-daemon.service