Antonio Huete Jimenez’s ‘libhammer‘, a library to make various Hammer functions available to userland programs, has been added. It implements ‘hammer info’ only at this point, if I understand correctly.
Samuel Greear, Jan Lentfer, and others are looking at Postgres scaling on DragonFly. The work they are doing isn’t in the tree yet, but here’s a graph showing some of the performance differences.
It’s snowing in the northeast U.S., which makes me happy! Keep going, sky!
- Richard Stallman’s requirements when giving talks/lectures. (via) I read this not unreasonable but long list and thought about it. Every requirement on there probably has an experience/story behind it… (“If you can find a host for me that has a friendly parrot, I will be very very glad.” – so this)
- Continuing the famous computer people trend of dying, John McCarthy died. He invented LISP (((insert parentheses joke here))) among other things, and wrote this story. (also via)
- I mentioned issues over the time zone database previously, but there’s a new home, and we’re still getting updates in DragonFly.
- And, it’s Dennis Ritchie Day. (via) That linked article does a good job of describing just how universal his influence has been.
- 64-bit ARM chips. (design PDF) This is just the announcement, but I bet these will be a good porting target in the next year or two if these designs wander out into the general market. (via many places)
- I’ve linked to similar deals before, but this one’s quite cheap: the Power Squid power strip sold as surplus. I find the design and name both great.
- Speaking of names, “I think Dragonfly is the coolest, cuz of the name.“
- I like this article on web advertising just because it has blocked-out screenshots that show exactly how much space gets used up by ads.
Francois Tigeot does something very useful: he monitors the resource usage on his systems, and tracks how it changes over time. Because of that, he noticed that the recent VM changes in DragonFly have made quite a difference in memory usage. (See the green area in the attached chart, around week 42.)
Michael Lucas is building jails on DragonFly, and his story of doing so works pretty well as a how-to guide.
It’s out, titled “The Inevitability of IPv6”, and featuring an article by yours truly on the upcoming DragonFly release. (I thought it was already published? I’m not sure.)
DragonFly’s now on the BuildFarm list of Postgres test systems. (via Jan Lentfer in IRC)
Here’s some recent x86_64 bulk builds: one on DragonFly 2.11, one on NetBSd 5.0.2, and one on Linux 22.214.171.124. Some data of note: DragonFly is within 8%-ish total packages built compared to NetBSD, which could be considered the baseline. Linux, the more common platform for most of the software built, is another step less. I don’t know if there’s any dramatic conclusion to get from this other than, “Hey, a lot of packages build on DragonFly!”
Samuel Greear graphed the performance differences for Postgres and MySQL on DragonFly, before and after the recent VM changes. Note that 1: this was done a little while ago, so I think the performance difference would be even greater now, and 2: this was graphed versus the already-performing-better 2.12, not the current stable release of 2.10.
Not a lot of links this week, for some reason.
- The best obituary I’ve seen yet for Dennis Ritchie, where he’s contrasted with Steve Jobs.
- The best paper abstract ever.
- Michael Lucas documents his DragonFly update.
- Our tcplay TrueCrypt implementation is getting noticed.
- pkgin-0.51 is available in pkgsrc-current, though it’s not in the most recent quarterly release.
Your unrelated comics link for the week: Oglaf. This week’s OK, but it’s frequently NSFW, and frequently hilarious.
That would be a recent ATI card, though I don’t know exactly which model name. Samuel Greear has imported David Shao’s DRM work, originally for Summer of Code, last year. Most newer Radeons should work (?).
There’s a rare crash in DragonFly 2.10, where applications would segfault. The system would run find. This is apparently more likely to happen in 2.12, though reports on this vary. It’s real, though.
Matthew Dillon went looking for this bug, and happened to roll back vm_token, the last lock in DragonFly that presented a serious impediment to multiprocessing. It’s a big patch. It fixes the problem, which is great! It also happens to make DragonFly buildworlds almost twice as fast depending on the number of cores in the system.
Holy crap we want to get that out… but it makes some significant changes to the system and needs to be tested. So, the next release probably won’t be for a few weeks.
If you want to help, build master and do something with it – move data, run server programs, whatever. Report crashes. This performance improvement is worth working for.
I build this up over the course of the week, so I’m never sure what to put here. Does it matter? The meat is the links.
- The Binding of Issac. It’s a roguelike, with shooter elements. It’s also creepy. Here’s the Flash demo. (Windows and Mac only, aww.)
- Why transparency is a good idea. (via… Michael Lucas? I lost track, sorry)
- The JFDI Theory of Language Adoption. This applies to operating systems too; create the shortest possible path between people and what they want to do on that OS.
- NetBSD has added SQLite to the base system. (via) Interesting… having a database(ish) always available leads to some new ways to keep data, outside of the usually “stuff in a text file” format.
Your totally off-topic link for the week: Fat Birds.