You can now get temperature readings from your Radeon card under DragonFly.
If you’re using nginx on DragonFly, version 1.9.1 has specific DragonFly speedup options built in.
A short but more interesting list this week, I think.
- ZFS Mastery is out in print and electronic versions.
- BSD management with Puppet.
- DiscoverBSD for 2015/05/25.
- Dell Networking OS 9 powered by NetBSD.
- Lumina Desktop Status Update/FAQ.
- PC-BSD 10.1.2: an Interview with Kris Moore.
- A FreeBSD Foundation visit to the (a?) NYI datacenter.
- “Patrol Read” support in OpenBSD.
- syslog-ng and ELK on OpenBSD.
- Yay for compatibility!
- The Linuxulator on FreeBSD now does 1:1 threads and x86_64.
- See this “Low Cost 10G Router” post on NANOG? Follow the very long thread, and you’ll notice a reoccurring theme: set up a BSD machine.
- Bitrig at NYCBUG on 2015/05/06, video.
Your Not BSD link of the week: Never fix anything.
Hammer 2 now uses LZ4 compression by default. It also uses a new CRC algorithm that performs much better, and there’s numbers to prove it. It helps iSCSI too. When I say new, it appears to be from the 1980s? I may be looking at the wrong place.
There’s a new ‘ifconsole’ option for /etc/ttys on DragonFly that may help you if your serial output device is a bit strange.
Matthew Dillon has been doing a lot of Hammer 2 work lately. Well, he’s been doing it for quite some time, but the recent commits contain the sort of things that are easier to link to, like deletion speedups, freemap changes, and stats tracking/compression results.
If you were running a version of DragonFly 4.1 (i.e. the master version, not release) built between the 20th and 25th, rebuild. There’s a UFS bug introduced in that short timeframe.
If you are running 4.0.x release or built your version of DragonFly-master outside of that date range – you are unaffected.
A recent commit from Matthew Dillon means users of Intel Haswell or later CPUs will see reduced power usage, if I’m reading this commit correctly.
Hammer will perform daily housekeeping tasks each night. If you’re up late enough, it may kick off while you are working. If you want to stop the process after it’s already started (since it’s disk-intensive), John Marino has added the ‘abort-cleanup‘ command.
Experimental automatic crypting of swap is now available in DragonFly-master. Recently added, though it may have been possible another way.
leaf.dragonflybsd.org, where the DragonFly website is hosted, is temporarily down while a disk is replaced. Images and binary packages are still available.
This may not be a huge surprise, but the Minnowboard MAX can run DragonFly just fine, modulo some dmesg complaints.
Sepherosa Ziehau has introduced a new sysctl:
net.link.ether.inet.log_arp_creation_failure
Set this to zero and you won’t get endless ARP events from networks you aren’t on. For example, I’m hooked up to a cable modem. I only get a public routable IP address, but the network used for the cable modem network itself bleeds ARP packets out where my DragonFly machine can see it. Since it’s on a different network segment than the address I receive through DHCP, it always fails and the system logs it. For example:
May 11 05:20:52 www kernel: arplookup 100.68.112.145 failed: host is not on local network
I can’t do much about it since that layer 2 leakiness is going to happen, but I can shut it up with this sysctl – and thank goodness, cause I’ve been seeing these messages since first using a DOCSIS modem in… 2001 or so?
Francois Tigeot has committed his Broadwell work, which has a longer-than-I-realized list of benefits. Does anyone have a 4k screen to try?
Jesse Wattenbarger wrote in with his success story of switching to DragonFly, both for server and desktop. Of note is his noticeable speedup with swapcache.
If you’re running DragonFly-master and you have an Intel video chipset, Francois Tigeot has an update for you. It brings accelerated Intel video up to match the Linux 3.14 version, adds Broadwell chipset support, and should generally improve performance. He lists how to test right in the message.
DragonFly committer Joris Giovannangeli has a Google Summer of Code project. He’s bringing Hammer2 to OpenBSD, in single-node form. It’s a very difficult project, but Joris is a very talented worker.
Tomohiro Kusumi has been quietly making a lot of commits to Hammer. I haven’t been linking them because they don’t necessarily equate to new features, but here’s an recent exception: the -A argument will make your Hammer command run on every PFS. It only affects reblocking/rebalancing – for now.