Efficient File Copying On Linux
In response to my last post about dd, a friend of mine noticed that GNU cp always uses a 128 KB buffer size when copying a regular file; this is also the buffer size used by GNU cat. If you use strace to watch what happens when copying a file, you should see a lot of 128 KB read/write sequences: $ strace -s 8 -xx cp /dev/urandom /dev/null ... read(3, "\x61\xca\xf8\xff\x1a\xd6\x83\x8b"..., 131072)
Building a Time Series Database
GC & JB Quants 100 Quants and engineers Lots of data (but not big data) I’m going to focus on the data platform Focus on data and computation in this talk Quants: Latency Throughput Access all historical data New data - Building schemas to store each new data-shape => lots of work - Build a data agnostic store => give users what they want immediately! Trading - Add Versions and snapshots for audit
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The Caveats of TCP_NODELAY
How TCP Sockets Work
GitHub - instacart/ohmycron: Run cron jobs in a standardized environment with logs and locking
EventQL from 10,000 feet
