How do I check for installed RAM (memory) size under OpenBSD UNIX operating systems?
You need to use the following command to see installed memory and other information such as CPU will be also displayed:
sysctl hw | grep memhw.physmem=535756800 hw.usermem=535744512
Or get full info:
sysctl hw
Sample outputs:
hw.machine=amd64 hw.model=QEMU Virtual CPU version 0.9.1 hw.ncpu=1 hw.byteorder=1234 hw.pagesize=4096 hw.disknames=wd0,cd0,fd0,fd1 hw.diskcount=4 hw.cpuspeed=2394 hw.vendor=Red Hat hw.product=KVM hw.uuid=c4123088-c43b-e81c-0a5f-1f11bc763fb9 hw.physmem=535756800 hw.usermem=535744512 hw.ncpufound=1
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