On 6/2/05, Ignacio Gómez <igomezu@xxxxxxxxx> wrote: > I want to know how Linux manages the Memory. My server has 2gb of Ram > Memory. I see that my server always loads more than 2 GB is this > normal? > when my server is idle is the same. > The Linux VM does it's best to use almost all of your systems RAM. Thought about the right way this is a good thing though because unused RAM is doing you and your system no good. Basically the Linux VM caches very aggressively. What you want to look at is not the amount of " free" memory (this should always be small except for a short while after the system boots) but the amount of "cached" memory. This is where the Linux kernel keeps information that has been accessed at some stage and might be needed again. If it is needed again then the it only has to be fetched from RAM, not from the hard disk, and if memory is needed for some new application then it can be written to disk to make room. So in your example below, only about 1/8 of your systems memory is actively being used, the rest is just cached info. For a straightforward explanation of the Linux VM (and why we need swap space), check out: http://sourcefrog.net/weblog/software/linux-kernel/swap.html Cian -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
