Platform-specific limits

Updated: May 06, 2022

Limit x86_64 ARMv7 AArch64
System RAM (theoretical) 1 TB 128 GBa 1 TB
System RAM (tested) 96 GB 4 GBa 8 GB
Physical addressing 48-bitb 40-bit with startup's -x option, 32-bit without 48-bitb
Number of CPUsb 8 8 8
Virtual address spaced 512 GB 2 GB 512 GB

a You need to enable extended addressing by specifying the startup's -x option.

b May be limited further by the hardware.

d These are the absolute maximum limits for the virtual address space; you can reduce them by setting the RLIMIT_AS resource with setrlimit().