Drew Gallatin

FreeBSD kernel hacker. Senior Software Engineer at Netflix Open Connect, focusing on performance.

[Drew Gallatin @DrewGallatin]

@ArcaVorago @ocochardlabbe The last I heard, Dragonfly is x86_64 only, and doesn't have support for arm64, which would exclude low power solutions like the Bluefield-3 I mentioned in my talk. I also don't think they support async sendfile, ext-pgs mbufs, or kTLS. All of which are critical for efficiency.

[Drew Gallatin @DrewGallatin]

@AmericanAir So glad I made executive plat where upgrades clear 100 hours before departure. Except they don’t. 100 hours ago there were 7 open seats in first. Now I’m 2 on the list for 1 seat Remind me why i should be loyal if you don’t do upgrades like you advertise?

[Drew Gallatin @DrewGallatin]

@Delta What happened to cleaning airplanes? This is gross

[Drew Gallatin @DrewGallatin]

Is it just me, or does Stellantis sound like a drug, and not a car company?

[Drew Gallatin @DrewGallatin]

@brikis98 Garmin. I have a Fenix 6, and the battery life is astounding. Better battery life on newer versions with solar charging.

The fitness tracking is excellent.

The areas where it needs work are sleep tracking (way worse than my old Android Wear). Notifications are a mess on iOS.

[Drew Gallatin @DrewGallatin]

@WoWGradStudent @cperciva @asadr @netflix We rely on async sendfile, kTLS, and NIC kTLS offload, which I don't think OpenBSD has. I gave a talk last year about how various optimizations impact the Netflix workload: https://t.co/JJ0XpcwUbz

[Drew Gallatin @DrewGallatin]

@lproven @cperciva SYSINIT() is a macro which causes a kernel initialization function to be called at a certain point in boot. See https://t.co/0OiwCQvyS0 for a list of those points.

FreeBSD's man page at https://t.co/vQ0XVj4Ovq provides a much better description than I can provide in a tweet.

[Drew Gallatin @DrewGallatin]

@brettpeirce @itskyleconner @marc_galles Yes, I watch Kyle's YT videos :) One of the reasons I've still got my old Model X instead of a Taycan or something. But with everybody switching to NACS, I want to have as many options as possible...

[Drew Gallatin @DrewGallatin]

@brettpeirce @itskyleconner @marc_galles Yes, but what I'm after is the ability to go to the not-yet-existing EA NACS charging stations if I need to.

[Drew Gallatin @DrewGallatin]

@brettpeirce @itskyleconner @marc_galles I thought that the ECU in the older Teslas (like mine) cannot speak CCS, and that even though the connector at 3rd party NACS charging stations will be NACS, they will speak the CCS protocol. So to me it seems like we need to updated ECU for both 3rd-party NACS and adaptor CCS.

[Drew Gallatin @DrewGallatin]

@OGMarsLife Repair anxiety. I *HATE* that its nearly impossible to talk to a human at your local service center. Checking on the repair status of your car is painful compared to independent shops, and even old fashioned dealerships.

[Drew Gallatin @DrewGallatin]

@itskyleconner @marc_galles According to the article below, it sounds like all Teslas made before October 2020 need a new ECU, and Tesla is charging $450 for the retrofit.

https://t.co/w8breTiD1I

[Drew Gallatin @DrewGallatin]

@b0rk Thanks so much for https://t.co/ppUIcIFGlW I'm normally a FreeBSD person, and your ftrace tutorial helped me figure out an issue I'm having on Linux with kexec that I would have used Dtrace to figure out on FreeBSD..

[Drew Gallatin @DrewGallatin]

@gyptazy @hexausted @dgoodkin @nixcraft Sadly we don’t use ZFS to serve data. ZFS doesn’t integrate with the vfs page cache, so data sent from ZFS via sendfile() incurs an extra memory copy from ARC into the page cache. This makes it less efficient for content than UFS. But we love ZFS and use it for our root fs.

[Drew Gallatin @DrewGallatin]

@greentheonly The random FSD lane changes drive me nuts also. I'm like "no, stay in the right lane when you're not passing!", and keep moving it back until I get frustrated and drive manually.

[Drew Gallatin @DrewGallatin]

@AmericanAir Why are your announcements from the captain so quiet they are unintelligible, yet the master card promotion is so loud I can’t hear myself think???

[Drew Gallatin @DrewGallatin]

@notshenetworks $2k roughly 2 years ago. I replaced it proactively when I moved, since it was past its end of life. This was a large (forgot the exact capacity) electric water heater, which is apparently needed when you have a large Jacuzzi tub..

[Drew Gallatin @DrewGallatin]

@notshenetworks You can appeal on most jurisdictions. Mine was increased the month after I bought it to $75k more than I paid 30 days prior. I appealed and it was reduced to my purchase price. Process was easy and quick.

[Drew Gallatin @DrewGallatin]

@Flack4RIC It would be great if you had a jet bridge driver available when a flight arrives late. Been waiting about 10 minutes now. Thanks so much for making me even later!!!!