How do I see how much RAM I have Linux?
- Open the command line.
- Type the following command: grep MemTotal /proc/meminfo.
- You should see something similar to the following as output: MemTotal: 4194304 kB.
- This is your total available memory.
How much RAM does Linux support? Linux and Unix-based computers
Most 32-bit Linux systems only support 4 GB of RAM, unless the PAE kernel is enabled, which allows a 64 GB max. However, 64-bit variants support between 1 and 256 TB. Look for the Maximum Capacity section to see the limit on RAM.
How much RAM is a process using Linux? You can check memory of a process or a set of processes in human readable format (in KB or kilobytes) with pmap command. All you need is the PID of the processes you want to check memory usage of. As you can see, the total memory used by the process 917 is 516104 KB or kilobytes.
How do I know my heap size?
- Log on to the WebSphere Application Server administrative console.
- Go to the area for specifying the heap size in the administrative console by completing the following steps:
- If the value in the Maximum Heap Size field is less than 384 , set it to 384 .