Notes

Zstd is faster and more efficient than Gzip in a medium text-based log file scenario. Zstd is well balanced in comparison with high-efficiency algorithms such as Brotli and Xz.

I was asked what I like about the Go language, and I realized I hadn't really given much thought to that. After some thought, I decided to write it down.

Go's CompareAndSwapT functions compile to the CPU-level CAS instruction. But, what about architectures that do not provide such built-in instructions, like some Arm64 versions and RISC-V?

By using UUIDv4 identifiers as names or hash hex digests, there is a nice trick to efficiently select a random item as long as the database support querying with a range condition (S3, SQL, DynamoDB, etc.)

Lock-free programming is hard to get it right, and modern mutexes (futexes) are generally fast when contention is expected to be low. However, I did this interesting exercise to learn more on lock-free techniques.

This static website is generated with a Python script that produces a build.ninja file which is then processed by the Ninja build system to generate the final HTML files.

In the last weeks, the topic of interest seemed to be UUIDv7 identifiers and how they solve DB index problems caused by random identifiers such as UUIDv4 IDs.

Enabling DNS-over-TLS or DNS-over-HTTPS is now easy on smartphones and non-tech savvy machines. In conjunction with HTTPS, it's a great step towards a privacy-friendly browsing experience. Well, almost...

Checking for DNS leaks is a technique to guess a client's ISP, even when it is connecting through a VPN or some other proxy service. Implementing a DNS Leak check is pretty straightforward.