Tuesday, July 14, 2015

FreeBSD now has NUMA? Why'd it take so long?

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I just committed "NUMA" to FreeBSD. Well, no, I didn't. I did almost no actual NUMA-y work in FreeBSD. I just exposed the exis...
Saturday, July 11, 2015

The importance of mentoring, or "how I got involved in FreeBSD"..

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Here's how I was introduced into this UNIX world, or "wait, WHO was your WHAT?" So, here's 11ish or so year old Adrian. ...
5 comments:
Sunday, June 28, 2015

RTL-SDR on FreeBSD, or "hey, cool, I live near an airport, I wonder if ADSB works.."

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I bought one of those cheap RTL-SDR units a few months ago. There's no real kernel code required for it - all of the rtl-sdr code just u...
2 comments:
Sunday, May 17, 2015

freebsd-wifi-build, or "wait, you can run freebsd on atheros MIPS access points? where do I get that?"

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I've been running FreeBSD at home as my primary internet/wifi access for a few years now. It's cheap, it's easy to do, and I...
12 comments:
Friday, April 10, 2015

Intel DDIO, LLC cache, buffer alignment, prefetching, shared locks and packet rates.

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I've been digging into the low level behaviour of high throughput packet classification and pushing for my job. The initial suggestions ...
4 comments:
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: