There are several ways to find out the memory (RAM) size information on an OpenBSD system. Here are some options:
sysctl command: The sysctl command allows you to view and modify various system parameters and statistics. To view the total amount of physical memory (RAM) installed on your system, use the following command:sysctl -n hw.physmem
This command will display the total amount of physical memory in bytes. To view the total amount of memory in a more human-readable format, use the -b option, which displays the memory size in bytes, kilobytes, megabytes, or gigabytes, depending on the size of the memory:
sysctl -b hw.physmem
dmesg command: The dmesg command displays the system boot messages and other kernel-related messages. To view the total amount of physical memory installed on your system, you can use the dmesg command and search for the line that contains the memory size information. For example:dmesg | grep Memory
This command will display a line similar to Memory: 1631048KB, which indicates that the system has 1631048KB (around 1.6GB) of memory installed.
top command: The top command is a real-time system monitoring tool that displays a list of the processes running on the system, as well as various system statistics such as memory and CPU usage. To view the total amount of physical memory installed on your system, you can use the top command and look for the line that displays the memory information. For example:top
The memory information is displayed in the "Mem" field, which shows the total amount of physical memory installed on the system, as well as the amount of memory currently being used and the amount of free memory available.
free command: The free command displays information about the memory usage on your system. To view the total amount of physical memory installed on your system, use the free command with the -t option, which displays the total memory information at the end of the output:free -t
The total memory information is displayed in the "Total" row of the output, under the "Mem" column. This shows the total amount of physical memory installed on the system, as well as the amount of used and free memory.
These are just a few examples of the various ways you can find out the memory size information on an OpenBSD system. You can find more options by consulting the documentation of the relevant commands or by searching online.