Quick hits for commits

There’s been a number of code additions worth noting that I’ll place here in bullet form:

  • Hasso Tepper has committed the sensor framework to DragonFly, coming from OpenBSD via FreeBSD.  He’s also added the coretemp and  lm/it drivers.
  • Sascha Wildner has updated timezone info, which apparently changes much more often, and more bizarrely, than I’d expect.
  • There’s a UUID now for Matthew Dillon’s upcoming HAMMER file system.
Multiple CPUs and MySQL on BSD

Joerg Sonnenberger pointed me at a recent post on the NetBSD tech-kern@ mailing list: Andrew Doran did some comparisons of MySQL’s sysbench on a multi-CPU system, with different operating systems. It unfortunately doesn’t include DragonFly, as DragonFly apparently would not boot on that system, but I’m a sucker for graphs.

It also shows generally better performance for NetBSD recently than for a Linux 2.6 kernel. This is interesting in part because MySQL performance on BSD has historically been worse than on Linux.