Graviton 3, Apple M2 and Qualcomm 8cx 3rd gen: a URL parsing benchmark(lemire.me)

146 points by ibobev 3 years ago | 86 comments

CPU Utilization Is Wrong (2017)(brendangregg.com)

75 points by xk3 3 years ago | 38 comments

Measuring the size of the cache line empirically(lemire.me)

27 points by ashvardanian 2 years ago | 1 comments

How many billions of transistors in an iPhone processor?(lemire.me)

157 points by greghn 3 years ago | 160 comments

Measuring energy usage: regular code vs. SIMD code(lemire.me)

40 points by ashvardanian 2 years ago | 13 comments

Subnormal floating-point numbers are expensive on Intel processors(lemire.me)

53 points by zdw 1 month ago | 41 comments

"Traditional, but Puzzling"(unsung.aresluna.org)

42 points by colinprince 10 days ago | 7 comments

Blog post on the Unsung software craft blog about a puzzling Unix error message seen by users in the 1990s and its history.

Kafka is Fast – I'll use Postgres(topicpartition.io)

500 points by enether 1 year ago | 359 comments

Blog post benchmarking Postgres as a pub-sub and queue system compared to Kafka, arguing for simpler, boring technology choices.

Why pipes sometimes get "stuck": buffering(jvns.ca)

343 points by tanelpoder 1 year ago | 85 comments

Julia Evans blog post explaining why Unix pipelines like tail -f | grep | grep appear stuck due to output buffering, and how to fix it.

Why is my CPU usage always 100%?(downtowndougbrown.com)

505 points by pncnmnp 1 year ago | 137 comments

Part 9 of a blog series on upgrading the Chumby 8's Linux kernel from 2.6.28 to 6.x, investigating why top always reports 100% CPU usage.

3,200% CPU Utilization(josephmate.github.io)

470 points by atomlib 1 year ago | 207 comments

Blog post debugging a Java service hitting 3,200% CPU across 32 cores, traced via thread dumps to concurrent unsynchronized TreeMap.put calls.

Why is Jepsen written in Clojure?(aphyr.com)

415 points by manicennui 2 years ago | 210 comments

Kyle Kingsbury (Aphyr) blog post explaining why the Jepsen distributed-systems testing tool is written in Clojure, citing concurrency support and JVM interop.