Category: performance

  • Some statistics from the router at the cabin

    sip0 is a GRE tunnel between the router and the colo box in Seattle, the payload of which is encapsulated as ipsec traffic before being transmitted over the Ubiquity equipment to the switch that the CenturyLink DSL modem attaches to. I don’t get centurylink easter eggs in my search results when I use this interface.…

  • Relatively high sustained rates detected along I-405

    $ scp moonunit.colliertech.org:/mnt/downloads/sh1-disk-20140420T070034.xz . cjac@moonunit.colliertech.org’s password: sh1-disk-20140420T070034.xz 76% 534MB 11.1MB/s 00:14 ETA Come on little internet! You can do it! You can push 100Mbit! I remember when this was the fastest I could send data across my LAN. Not bad for a 20 mile shot up I-405. Sorry if I caused any congestion there, folks.…

  • Windows is *still* loading files

    I’m moving the active directory server off of hardware on to the hypervisor. I think if I boot the drive as USB I can install the virtio disk drivers on the system. Fingers crossed! Only thing is that this first boot off of a USB device takes *sooooo* long!

  • Vacation Tasks

    So, I’m taking vacation this week and next. Here’s a (partial) list of tasks that are left to do: Visit BC for NANOG 55 Work with Threshold Communications to verify interop is working as well as it seems to be Make sure the UTC has acknowledged receipt of our 2012 filing Complete move of storage…

  • software bridge loops suck, too

    I didn’t realize that I had two of my machines attached to openvpn from the same l2 segment. It caused a network outage for about 24 hours. Sorry for the downtime folks. I believe that if I turn on stp for all nodes which have two legs in to the same l2, I can avoid…

  • NIST::NVD::Store::SQLite3

    I published an SQLite3 storage back-end to NIST::NVD on the CPAN. It’s pretty quick. About as fast as the DB_File one, but without the down side of being tied to DB_File. It shouldn’t be too difficult to re-factor this code to any DBI-based database. MariaDB anyone? I know it works on Debian. The nightly CPAN…

  • blog optimizations

    Thanks to some recommendations from Jeremy, Pierre and Jeff, this blog should be running a lot less slowly. I’ve installed memcached, set up wordpress plugins, tuned apache MPM parameters, tweaked iptables and tc rules and beaten on the blog with load testing scripts. It seems that it will now reliably handle around 10 concurrent requests…

  • Running a console cable to the radio

    So, I’m attaching a radio to the chimney. I don’t want to have to bring it down every time I need to flash the firmware, so I’m also running an rs-232 cable up to it along with the PoE data/power cable. Since they don’t have anything pre-built, I wired one myself. I also made a…

  • An update

    I don’t really have anything really exciting to report, so y’all get to listen to me blather. And after all, that’s what blogs are for anyway, right? Zelda is turning 11 months old this month. This is still my favorite picture: I have been dishonorably discharged from Amazon. It seems that I am incompetent. It…

  • does anyone else feel forced to produce crap?

    Management wants MORE RESULTS NOW NO MATTER WHAT THE COST!!!!! I feel like the world is telling me to give them more crap, less useful code! Does anyone else feel like business requirements are forcing them to produce lots of fluff rather than small amounts of quality content? Should I be concerned? Should I care…