Build Server Setup

System

• CPU: 48 x Intel(R) Xeon(R) Gold 5412U (1 Socket) speed: 2100 MHz - 3900 MHz
• Mem: 256 GB
• Storage: 36 TiB (~4 TiB on SSD)

Location

• Germany (Frankfurt am Main)

Setup

• Ubuntu 24.04 VM running on Proxmox VE
• no public access
  • access is granted via a dedicated VPN connection only
  • SSH only via that VPN and pubkey-only (password auth disabled)

Proxmox VE setup

• Full Disk Encryption via LUKS on all partitions
• Secure Boot enforced (LUKS unlock on boot is NOT handled using TPM! i.e. an unlock must happen manually for enhanced security)
• no public access
  • access is granted via a dedicated VPN connection only
  • SSH only via that VPN and pubkey-only (password auth disabled)

Build time averages

some examples (last updated: 2025-12-03) for AXP.OS builds which are covering the following specs:

• clean builds (i.e. emptied out/)
• using fast SSD storage for Android sources and out/

• (^1): Pure build time: calculated only build time (i.e. w/o preparation like git reset/sync etc and w/o post-tasks like release, git push etc)
• (^2): Full build run: calculated whole build run (i.e. with preparation like git reset/sync etc and with all post-tasks like release, git push etc)