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Linux memory usage 99% shown in free -h terminal output
Linux General

Why Linux Memory Usage Hits 99% (And Why It’s Good)

Apr 19, 2026 Apr 19, 2026 - by aneeshya - Leave a Comment

High RAM usage (as seen in 99%) is NOT a sign that your system is working hard to use all of the RAM - the Kernel is using ALL of the RAM as Disk Cache so you will be able to do things faster. This cache will be returned to Applications INSTANTLY if/when they need […]

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