How To Speed Up Build Time For FreeBSD

[Mali 61473]

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For this tutorial, your PC must supports virtualization technology.

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I tested in this machine:

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FreeBSD 12 + Clang-9 + 2 GB Ram:

 

Benchmarks:

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Game: 2 min.
DB: 26 sec.

1- Enable virtualization technology(SVM Mode). I enabled at bios. But you can do this whit different ways:

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https://www.wikihow.tech/Enable-Hardware-Virtualization

 

2- Enable VT at VirtualBox: 

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3- Enable I/O APIC at VirtualBox: 

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4- Change Processor setting. Before check your CPU Core Count:

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Usage:

Don't use gmake j command like: gmake -j20
Usage:
gmake -j(core+1)
Example I have 4 cores: gmake -j5

 

[Galet 590]

Great, thanks for sharing! Another good thing is CCache, which drastically decreases compilation time by using cache, though it can sometimes be buggy for small modifications. Though I rarely use it

[DemOnJR 1215]

For those with the option disabled VT-X / AMD-V do this (you still need to enable the virtualization in bios first)

Go to Virtual Box installation folder and open CMD (not powershell) then run the following command to enable VT-X AMD-V
Also enable PAE/NX if you want to allow freebsd more than 2gb ram the default limit for 32bit.

Command:
VBoxManage modifyvm <Your Virtual Machine Name> --nested-hw-virt on

Example:
VBoxManage modifyvm Freebsd --nested-hw-virt on

 

Edited June 19, 2025 by DemOnJR