🔥 Supercharge CyberPanel Backups with Multithreaded Compression & Full CPU Core Utilization on Multi-Core Servers?

Support and Discussion
1

Hi CyberPanel team and community,

I’m running CyberPanel on an AlmaLinux 9.5 VPS powered by a Ryzen 9 7950X (16 cores / 32 threads). Out of the box, the built-in backup routine uses single-threaded tar + gzip, leaving most of my CPU cores idle and dragging my nightly backups into the multi-hour range.

I want to:

  1. Enable parallel compression (e.g. switch to pigz or similar) so every core can contribute.
  2. Run backups at max CPU & I/O priority (via nice / ionice or systemd settings) to minimize wall-time.
  3. Do this in a supported or minimally invasive way—ideally via a panel config flag or official hook—so it survives future CyberPanel updates.

Specifically:

  • Is there a built-in option or config file where I can swap out gzip for pigz (with -p $(nproc) threads)?
  • Can I instruct CyberPanel’s backup service (lscpd) to drop its default nice/ionice values or adjust its systemd cgroup settings?
  • If code-patching is currently the only path, which exact file(s) under /usr/local/CyberCP/… should I target, and how do I ensure my changes aren’t overwritten on panel upgrades?

Any guidance, sample configs or pointers to the relevant code sections would be massively appreciated—thank you!