BSDNow 264 is available now and has the usual roundup of news, including discussion of Threadripper performance that I’ve avoided.
For anyone considering the purchase of a Ryzen system given the good benchmarks/power usage, here’s some discussion on users@ about which model is which.
I’ve been linking to other parts of this, but now it’s on one page: “Zenripper“, talking about how to overclock/underclock a Threadripper system on DragonFly.
It turns out Threadripper (well, a Ryzen CPU) delivers good performance at relatively low power usage. As I sit in a room made too warm by a single desktop machine running, this lower wattage sounds pretty good to me.
Following up on the DragonFly/Threadripper benchmarks, DragonFly now has some NUMA work to accommodate the non-uniform CPU and RAM layout on those boards.
DragonFly will now run on a Threadripper 2990wx. What’s more, Matthew Dillon has published some testing results showing how power, CPU use, and memory speed all interact with these things. There’s a followup, too. I imagine these are interesting CPUs to most people, since they perform well and don’t have recent Intel-specific security problems.
A reminder: you need some loader.conf changes if you are booting with EFI/i915.
(Sort of a repost, but someone may need it.)
Aaron LI has been making a significant number of changes to the tap(4) and tun(4) interfaces, which he recently summarized. As his summary notes, you can now create and destroy tun devices. This will be very useful for some IPv6 and probably also VPN users. There’s some new sysctls, and corresponding man page updates.
DragonFly-current, that is. Some newer multi-processor systems use X2APIC to boot, and DragonFly can now use it.
If you have a serial card add-in, DragonFly can now output the console to it – a way to run completely headless. It’s not quite like a normal on-motherboard serial port boot, so look at the commit notes for implementation details.
Here’s something that doesn’t have an immediate impact now, but will be useful down the road: Francois Tigeot has been working on DRM support in DragonFly, and has been quite successful with Intel video support. His strategy has been to adopt Linux methods where possible, to reduce the amount of support work. The payoff has been excellent, and prompt, accelerated video support in DragonFly. The most recent work is “git: drm: Implement parts of the Linux irq subsystem“, which is going to come in handy for someone, I’m sure.
Some nice tech explanations this week.
- OpenBSD on my fanless desktop computer. Read to find out more about the RUNBSD stickers. (via)
- OpenBSD Community Goes Gold for 2018!
- Hardware accelerated AES/HMAC-SHA on octeons.
- Caddy Web Server on FreeBSD.
- free command for OpenBSD. I’d love to see a deep dive into the various BSD *stat commands. (via)
- Call for Papers | EuroBSDcon 2018. (via)
- Towards Secure System Graphics: Arcan and OpenBSD. (via)
- NetBSD 8.0RC1 is out.
- Running my own git server. On OpenBSD. (via)
- Perl @INC – customizing it for FreeBSD.