Discontented with contention? Be content.

Matthew Dillon wrote a roundup post summarizing all the changes he’s made to DragonFly to improve SMP performance in the last few weeks.  He’s removed almost all contention from DragonFly.  This means better performance, scaling upward depending on the number of processors.

‘monster’, the system that builds all 20,000 items in dports, can complete the run in 15 hours.  Compare this to the 2 weeks it used to take me to build the 12,000 packages in pkgsrc.  This is admittedly on different hardware and different packaging systems, but it gives a sense of the scale of the improvement.


Lazy Reading for 2013/10/27


Your unrelated link of the week: Deep into Youtube, the top-rated films.  You may want to turn your volume down, and make sure nobody is around.  Not for NSFW content, but because some of those films are so confusing that it’s impossible to explain to someone else why you are watching them.  (via)  There’s some Nico Nico Douga-sourced stuff in there, which I thought I’ve mentioned before, but I can’t find it now.  Why do I even know these things?

In Other BSDs for 2013/10/26

Once again, doing this at the last minute:

I’m hiring

This has nothing really to do with DragonFly.  I’m hiring a report developer for work.  Here’s the Craigslist job posting.  I consider it very unlikely that there’s a local reader of this blog that also has the right skills, but what the heck.

Lazy Reading for 2013/10/20


  • The Shady Characters blog talks about alternate phone dial layouts.  I’ve mentioned those here before, but Shady Characters links to this video describing the testing that went on for the keypads.  Check at about 2:40 for the story on how AT&T figured out the ‘correct’ length for the phone handset cable.
  • The Youtube channel for Numberphile, the source of that previous video link, has some pretty entertaining math videos…
  • The UNIX as a Second Language blog has an article up about using strace.
  • The Roland SP-808.  I didn’t know these had a built-in Zip drive.  (via)
  • The ICT 1301 runs again.  This is what big computers are supposed to look like, with large cabinets, and spinning tapes, and oversized operator consoles.  (via)
  • Cryptogeddon, a sort of augmented reality game where I think you sneak your way across real systems.  ‘Real’ as in not someone else’s computers, but real systems set up for this game.  (via)

Your unrelated link of the week: Here’s a weird coincidence.  I was looking at this list of pixelated iconic album covers.  The #3 item is “Trout Mask Replica”, from Captain Beefheart and the Magic Band.  I scanned that specific image back in 1994, on a Mac IIsi in my college lab.  For whatever reason, I’ve seen copies of my scan (color corrected much better than I did) many times since.  I know I’m not hallucinating because I still have the record, with the same wear pattern on the album cover.  It’s odd to see a 20-year-old copy of a 40-year-old album scan you did just pop up out of nowhere.

In Other BSDs for 2013/10/19

I am doing this one at the last minute.  I had all the articles noted, but normally I build this post over the course of the week.