calmtech

9 ms·

1. 1.▲
   by calmtech 4y ago

   We noticed that one line of byte code was crazy hot. We traced it back to the code, and realized it was a special case fallback. They were summing 10mb of 8 bit encoded integers, in the 99.5th percentile of traffic, so no one noticed. It wa
2. 2.▲
   by calmtech 4y ago

   Found a single line of byte code that cost $4M of compute per year.
3. 3.▲
   by calmtech 4y ago

   For anyone who finds this later: Home assistant integrates with esphome which supports waveshare if you get the esp32 interface rather than the raspberry pi HAT. And todoist integrates with home assistant. Basically all via yaml.
4. 4.▲
   by calmtech 4y ago

   To really scale I think the next step is something that could be run off an esp32, because power and cost are the current scaling limits.
5. 5.▲
   by calmtech 4y ago

   I got a 7.5 inch wave share displaying my todos from todoist, today. Very easy. A few gotchas. I ended up ordering a case from thingiverse because the case wave share sells doesn't fit the HAT model. My goal is to not look at my phone