advanced topicsSep 26, 2026
Go 1.27 Size-Specialized Allocation: Why Small Allocations Got Faster
Go 1.27 ships specialized mallocgc functions for allocations of 80 bytes or fewer. How size classes work, why 80 was the cutoff, and what the change means in practice.
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advanced topicsSep 25, 2026
Writing Portable SIMD in Go with the Experimental simd Package
Go 1.27's experimental simd package keeps vector width out of the type system entirely. What that buys you, what it costs, and how to test code you can't run on real hardware.
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advanced topicsSep 24, 2026
The Go Memory Model in Practice: Happens-Before Rules for Everyday Concurrency
Go's happens-before rules for goroutines, channels, mutexes, atomics, and init — and the everyday idioms that quietly violate them.
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advanced topicsSep 22, 2026
Rate Limiting Go Services with golang.org/x/time/rate
Choose between Allow, Reserve, and Wait, size bursts deliberately, scope limiters per client, and test refill behaviour without slow sleeps.
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getting started with goSep 20, 2026
How io.Reader and io.Writer Keep Go APIs Composable
Partial reads, EOF handling, io.Copy's fast paths, TeeReader and MultiWriter, buffering, and testing streams.
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best practisesSep 19, 2026
Table-Driven Tests in Go: Subtests, Parallelism, and Keeping the Table Readable
Structuring Go table tests so failures tell you which case broke: t.Run naming, parallel subtests, t.Helper, golden files, and the point where a plain test function wins.
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