Me: ha-ha, I'm so glad my blog runs on a static site generator and the pi-searcher is in Rust so I don't have to worry about all these vulnerabilities announced yesterday
Also me: oh fuck you mean that things uses PHP internally? And that? And -that- too?
So many updates
So so many updates
I needed to rant about the damn openai PDF dump method even though other people are already saying the same thing. 🤓
I'm not even in that area and yet - what a weird time to be a computer scientist in general, and a math or theory person specifically.
I always wake up with a bit of a feeling of dread on the paxos lecture day.
Chirashi time
well, that was a little harrowing. First bike-car accident I've ever been in in ~45 years of riding a bike all the time. Someone was signaling to turn left and then decided, as I was going past them, to turn right instead. Luckily neither of us was going too fast and I kind of skidded along the side of his car and don't think I have any injuries, but yowza.
shout-out to that cycling team coach in grad school who had us do practice bumping into each other and shoving each other around. 🤣 Never thought those reflexes would come in handy on the cargo bike.
The world needs to know that my niece and nephew decided that the little horn on the back-end of a hornworm (like a tomato worm, or in this case an introduced leafy spurge hawk moth caterpillar) is called a...
Butt Fang.
I cannot convey how much I love this. Biologists: we need this terminology in the literature.
Oopsie. Was running a bunch of network measurements / traceroutes from my house to my office machine and apparently some component in CMU's network has decided that was not OK and now I can't access the campus network at all from home. 😂
(I mean, I can, because networking professor, but not directly.)
Random blog post inspired by someone else's random blog post. Mostly I just love succinct data structures and continue to want the world to know about them. :-)
Random blog post inspired by someone else's random blog post. Mostly I just love succinct data structures and continue to want the world to know about them. :-)
Starting year 3 of the 5lb CO2 tank. Only got 11 months out of it this time and the price of the refill went up from $13 to $14, but still a huge win over $17 for a 0.9lb refill with exchange for sodastream’s little co2 thingies. $0.06 / liter of carbonated water vs like $0.40/liter. 🤓
With amortizing the tank and hose, it's been about $0.15/L of carbonated water, and marginal cost for this year is $0.063 or so. Economics remain incredibly favorable, but time economics are even better - dealing with a refill once per year is awesome.
And, ~24 hours after I started debugging it (but only 18 hours after I started yelling at Verizon), fixed. Ugh.
The accidental correlation of their outage with my network upgrade made this really painful. But now I have better monitoring tools so that I can .. never use them because this exact failure is unlikely to recur! 🤓
Wish I could see what actually happened, but, alas, I'll have to settle for the happiness of having working internet.
A re-creation of the problem in Mac Paint. Or, data supporting the assertion that I should not quit my day job to become a digital artist.
Oh yeah, this is the hard part. Apparently the front-line techs have no way to receive information via any text format. They had to video and take a shot of my screen to see the traceroutes.
blah blah this could have been an email blah blah and instead I've spent 2 hours on the phone with them.
Tearing my hair out trying to debug newfound packet loss on my home network. I updated OpnSense the other day through a year of deferred updates. I thought that was the source of the problem. It was not.
To cut to the chase, here's a nice little iperf log. The === 40001 === is the source port that I have iperf configured to send from
# sh checkem-cmu
===== 40001 =====
[ 5] 0.00-5.02 sec 59.8 KBytes 97.4 Kbits/sec 0.547 ms 0/51 (0%) receiver
[ 5] 0.00-5.25 sec 59.8 KBytes 93.2 Kbits/sec 0.824 ms 0/51 (0%) receiver
[ 5] 0.00-5.03 sec 59.8 KBytes 97.4 Kbits/sec 0.686 ms 0/51 (0%) receiver
===== 40002 =====
[ 5] 0.00-5.02 sec 5.86 KBytes 9.56 Kbits/sec 0.340 ms 41/46 (89%) receiver
[ 5] 0.00-5.02 sec 7.03 KBytes 11.5 Kbits/sec 0.326 ms 39/45 (87%) receiver
[ 5] 0.00-5.02 sec 5.86 KBytes 9.56 Kbits/sec 0.141 ms 36/41 (88%) receiver
===== 40003 =====
[ 5] 0.00-5.02 sec 59.8 KBytes 97.5 Kbits/sec 0.635 ms 0/51 (0%) receiver
[ 5] 0.00-5.06 sec 59.8 KBytes 96.7 Kbits/sec 2.689 ms 0/51 (0%) receiver
[ 5] 0.00-5.02 sec 59.8 KBytes 97.5 Kbits/sec 0.839 ms 0/51 (0%) receiver
This is repeatable. Most 5-tuples work. Particular 5-tuples experience 90% packet loss.
So, naturally, I swapped out my router for my laptop, and managed to repeat the packet loss.
So now is the hard part: Convincing Verizon they've got a bad LAG or ECMP group a little bit inside their network when all I can talk to is a front-line tech guy who's very nice but only knows how to test my ONT and has no idea what iperf or ECMP is. 🤣
I got well-ackshully'd by my watch in class today.
I failed to turn off the "talk to Gemini by raising your hand to your mouth" thing. It never works when I want it to but it triggers sometimes writing on the blackboard.
I said "the drive's read head parks" and my watch burst out "THAT IS CALLED THE ACTUATOR"
I am dead
And the fucking thing is right, of course
This bought me 10+ minutes of peace. I wonder if it would work with my 8yo.
Oh yeah. Human dad, why did you never tell me about peanut butter mixed with kibble before??
It amuses me that the easiest way to get the dog crate to my office was to take it on the cargo bike - the university seems to frown on the idea of me parking my car on the sidewalk next to the entrance to the building but they have kindly provided a bike rack there. 🤓
Took the puppy for her first climbing trip. "Trip" might be a bit of an exaggeration - we went to Frank Curto Park in Pittsburgh, which has a large retaining wall that was bolted for climbing a couple of years ago. Puppy did well (meaning she sniffed, found an old sock, and then napped). The view from the top is quite nice for an urban infrastructure climbing crag. +1 would recommend for anyone looking for an easy way to see how your puppy handles cragging. 🤓
