Linux

When it comes to preparing documents for important applications like the UK’s ILR (Indefinite Leave to Remain), efficiency and ease of use are everything. Recently, I needed to create a PDF from my passport pictures, and after some trial and error, I found a workflow that saved me a ton of time and frustration - all thanks to a fantastic open-source tool called PDF Arranger. The Struggle with LibreOffice Draw At first, I tried using LibreOffice Draw to assemble my passport photos into a PDF. Unfortunately, it was painfully slow, and arranging the imported images was a hassle. The interface just wasn’t built for this kind of task, and I quickly realized I needed a better solution. ...

Modern servers are expected to push hundreds of gigabits per second while keeping latency low and CPU use manageable. Two kernel-level innovations-socket sharding and kernel TLS (kTLS)-help make that possible. When paired with NIC TLS offload, the gains are even bigger. Socket Sharding Traditionally, only one process could accept() connections from a TCP socket. With Linux 4.5 (2016) and SO_REUSEPORT enhancements, multiple processes can share a listening socket. This “socket sharding” lets the kernel distribute connections efficiently across worker processes. ...