Saturday, March 28, 2015

Using the arswitch ethernet switch on FreeBSD

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I sat down a few weeks ago to make the AR8327 ethernet switch work and in doing so I wanted to add per-port and 802.1q VLAN support. It turn...
Thursday, March 19, 2015

Cache Line Aliasing #2, or "What happens when you page align everything"

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After a little more digging into the Intel performance side of things, I discovered one of the big reasons for the performance drop on this ...
1 comment:
Friday, March 6, 2015

cache line aliasing effects, or "why is freebsd slower than linux?"

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There was some threads on FreeBSD/DragonflyBSD mailing lists a few years ago (2012?) which talked about some math benchmarks being much slow...
4 comments:
Sunday, February 22, 2015

FreeBSD on the POWER8: it's alive!

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A post to freebsd-ppc from a couple of months ago asked if we had support for POWER8 and offered to provide remote access to anyone interest...
6 comments:
Sunday, February 15, 2015

TDMA (somewhat) working on AR9380 chips

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(Wow, I have a lot of posts to write to catch up on things.) I've just brought up FreeBSD's TDMA support on the AR9380 chipset. Sp...
Sunday, January 11, 2015

On profiling HTTP, or "god damnit people, why are all the open source tools slow?"

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Something that's been a challenge at work (and at other things in the past) has been "how do I generate enough traffic to test this...
Thursday, November 20, 2014

... mmm emulators.

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I occasionally get asked to test out FreeBSD/MIPS patches for people, as they don't have physical hardware present. I can understand tha...
1 comment: