When building your Redis server, be sure to disable transparent huge pages (THP) by running this command as a privileged user:
sudo echo never > /sys/kernel/mm/transparent_hugepage/enabled
If it is not disabled, THP can cause latency issues once Redis forks a background process to persist data to disk. If your server is multi-purpose (for example, a web server also running Redis), the increase in latency could be exponentially worse. The bottom line is that disabling THP on Linux for Redis is the best approach.
