Go on Shai Asher

The cache was working perfectly. That was the problem.

Sun, 06 Sep 2026 09:00:00 +0300

02:47

Falafel Corp runs a one-person on-call rotation, which is a staffing decision that looks efficient right up until the night it isn’t. Tonight it is your turn, and the phone goes off on the nightstand, and you are awake before you are conscious.

Finding Errors in Log Streams

Sat, 05 Sep 2026 12:00:00 +0300

Two questions come up constantly when processing large log files:

Where is the 1000th error?

How many errors happened before this timestamp?

They look trivial. At scale they are not. The obvious implementation scans the whole dataset for every question, and with ten million entries that is ten million comparisons to answer one of them.

SIMD-Optimized Bloom Filter in Go: An In-Depth Exploration

Mon, 22 Sep 2025 07:03:20 +0000

Project Repository: https://github.com/shaia/BloomFilter

From Go to Assembly

When we think of Go, we think of concurrency, simplicity, and “good enough” performance. But what happens when “good enough” isn’t good enough? What happens when you need to squeeze every last drop of performance out of the CPU for a critical, hot-path operation?