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jcartw

868 karma · joined February 19, 2025

email: cartwright.76@gmail.com
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jcartw··on The decline of single-earner housebuyers in America
A tale of opportunities and costs
jcartw··on Why investors are increasingly fatalistic
Subtitle: Everyone knows share prices have a long way to fall. Even so, getting out now might be a mistake
jcartw··on America's housing market is shuddering
Subtitle: For the country’s homeowners, the good times are coming to an end
jcartw··on You need to be able to run your system
This topic comes up often among teams with large systems. What are some good counterarguments?
jcartw··on Consistent Hash Ring
Interactive Consistent HashRing Visualization
jcartw··on Dice and Queues
This is great! Another simulator that is interesting to explore M/M/1 queues is provided by Wolfram: https://demonstrations.wolfram.com/SimulatingTheMM1Queue/.
jcartw··on Dice and Queues
Thank you for the sharp eye!
jcartw··on MySQL transactions per second vs. fsyncs per second (2020)
The author does mention that the OS appears to be performing a sort of batching or aggregation of fsyncs after reviewing the test results and concludes that more than 1000 fsyncs are occurring per second. I’ve also confirmed this by running some benchmarking on EC2 instances with gp2 volumes: https://justincartwright.com/2025/03/13/iops-and-fsync.html
jcartw··on Ask HN: Neutral Emoji for Acknowledgement
> You do have to conform to the communication norms of whatever group you're communicating with.

That's an excellent point. It does make sense to observe the way certain common forms of acknowledgement are being used within different context to understand the way that the group interprets them.

A thumbs-up can be used in a dismissive way at times. As one example, see the Giant Thumb Guy meme: https://knowyourmeme.com/memes/giant-thumb-guy.

jcartw··on Ask HN: Neutral Emoji for Acknowledgement
Do you have any type of text responses that you feel are ambiguous in terms of if there's any meaning behind them other than an ACK?