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Radish, Keep Going!

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Latest from Radish, Keep Going!

90 recent articles

Radish, Keep Going!

Dec 31, 2024 · Backend Development

How to Spot and Prevent Common Go Memory Leaks

This article examines typical Go memory‑leak scenarios—including unclosed files, forgotten HTTP response bodies, slice sharing, goroutine and channel misuse, improper finalizers, and outdated ticker handling—provides concrete code examples, and offers practical techniques such as using strings.Clone, buffered channels, and proper defer usage to avoid leaks.

GoroutineMemory Leakresource management

0 likes · 9 min read

How to Spot and Prevent Common Go Memory Leaks

Radish, Keep Going!

Dec 23, 2024 · Backend Development

Speed Up Go Cache Expiration Tests with testing/synctest

This article explains how Go's testing/synctest experiment speeds up cache expiration tests by using a virtual clock and bubble isolation, providing code examples that reduce a five‑second wait to milliseconds while ensuring reliable concurrent test execution.

GoTestingconcurrency

0 likes · 7 min read

Speed Up Go Cache Expiration Tests with testing/synctest

Radish, Keep Going!

Dec 22, 2024 · Backend Development

Why Go’s AddCleanup Outperforms SetFinalizer for Safe Resource Cleanup

This article explains the limitations of Go's runtime.SetFinalizer, introduces the new runtime.AddCleanup function in Go 1.24, demonstrates proper usage with code examples, and highlights important pitfalls and best‑practice tips for reliable resource management.

AddCleanupGoResource Cleanup

0 likes · 7 min read

Why Go’s AddCleanup Outperforms SetFinalizer for Safe Resource Cleanup

Radish, Keep Going!

Dec 19, 2024 · Information Security

Why “Security Is Our Top Priority” Is Empty Talk—and How to Balance Security with UX

The article critiques hollow security‑first slogans, explores the endless nature of security, the tension between security and user experience, and offers practical risk‑scoring frameworks and phrasing advice for organizations seeking a realistic balance between protection and usability.

Information SecurityUser Experiencerisk management

0 likes · 10 min read

Why “Security Is Our Top Priority” Is Empty Talk—and How to Balance Security with UX

Radish, Keep Going!

Dec 16, 2024 · Backend Development

Mastering Go 1.24 Weak References: Using the New std‑lib weak Package

This article explains Go 1.24's new std‑lib weak package, compares it with weak reference implementations in other languages, demonstrates its API with practical code examples, and shows how to build canonicalization maps and fixed‑size caches using weak pointers.

Cacheweak references

0 likes · 9 min read

Mastering Go 1.24 Weak References: Using the New std‑lib weak Package

Radish, Keep Going!

Dec 12, 2024 · Backend Development

How Go 1.24’s New os.Root API Stops Directory Traversal Attacks

This article explains the newly added os.Root type and os.OpenRoot function in Go 1.24, demonstrates how they restrict file operations to a specific directory, and shows how they prevent classic directory‑traversal exploits such as CVE‑2024‑3400.

GoGo 1.24backend

0 likes · 6 min read

How Go 1.24’s New os.Root API Stops Directory Traversal Attacks

Radish, Keep Going!

Dec 8, 2024 · Fundamentals

Why a Server Can’t Just Support 65,536 TCP Connections – The Real Limits Explained

This article debunks the common myth that a server can only handle 65,536 TCP connections by exploring the theoretical four‑tuple limits, practical constraints like file descriptors, port ranges, and memory/CPU usage, and explains how the true upper bound is far larger.

LinuxTCPfile-descriptors

0 likes · 5 min read

Why a Server Can’t Just Support 65,536 TCP Connections – The Real Limits Explained

Radish, Keep Going!

Dec 6, 2024 · Backend Development

How BigCache Achieves Ultra‑Fast In‑Memory Caching in Go

This article explains how the Go library BigCache uses sharding, efficient hash functions, and memory‑optimised data structures to deliver high‑concurrency, low‑latency caching, while avoiding GC bottlenecks and providing practical code examples and performance benchmarks.

CachingGobigcache

0 likes · 12 min read

How BigCache Achieves Ultra‑Fast In‑Memory Caching in Go

Radish, Keep Going!

Nov 16, 2024 · Operations

How to Set Up a Local GitLab CI/CD Environment on an M1 MacBook with Docker

This guide walks through installing GitLab CE on an M1 MacBook using an ARM Docker image, configuring ports, setting up SSH access, creating a sample project, and registering a GitLab Runner for CI/CD pipelines, all with step‑by‑step commands and code snippets.

CI/CDDockerGitLab

0 likes · 7 min read

How to Set Up a Local GitLab CI/CD Environment on an M1 MacBook with Docker

Radish, Keep Going!

Aug 7, 2024 · Backend Development

Boost Go Performance: Mastering GC with go trace, GOGC & GOMEMLIMIT

This article demonstrates how to analyze and optimize Go's garbage collection using go trace, comparing single‑threaded and concurrent implementations, and shows how tuning GOGC and GOMEMLIMIT can dramatically improve runtime and memory usage, with detailed code samples and performance metrics.

GOGCGOMEMLIMITGo

0 likes · 13 min read

Boost Go Performance: Mastering GC with go trace, GOGC & GOMEMLIMIT