I have a AMD XP 2400/512MB with CentOS 4.x, Cpanel and WHM installed. There's no users on it apart from me but php-sysinfo says 98% of mem is used. Is this normal?
Actually, I asked my server management company and they said and i wanted to double check to see if this was also what other people experience. The running processes seem to be fine
In cpanel you have the change the configs thats correct did you update your kernal recently i have updated mine and alots of people have.. to let you notice..
A large portion of that 'used' memory will be allocated to buffers and cache. This memory can be easily be reclaimed by any process that needs it. If you can, shutdown any services that you don't need, e.g. mail. Cryo.
My desktop with 512megs of ram is running at about 95% full. My server with 8gigs of ram is running at 97% of memory. So your useage seems normal. As noted above, linux moves stuff in and out of memory differently than other OS's. It's not like saying you're using 95% or RAM in windows. I think you should watch the swap instead - it that's starts getting full I'd be more concerned.
Go to cpanel look at your statics about the server usage in the bottom where hardisk information is written it will say swap percantages .. post them here..
Current Mem usage has: total used free shared buffers cached Mem: 499796 258020 241776 0 40344 97668 -/+ buffers/cache: 120008 379788 Swap: 1012084 0 1012084 Total: 1511880 258020 1253860 so I guess 0 swap used is good and 378megs free cache is good too
What all of you missed is a critical part of linux: Linux was developed to efficiently use RAM, which also means it's going to use 98% or 99% of the RAM *All* the time, almost no matter what. This is *as designed* and you do not have a memory leak.