algorithm Archives

Tech Optimizer

September 1, 2026

Autoscaling Lakebase Postgres

Choosing a database instance size without prior knowledge of the workload can lead to inefficiencies and excessive compute usage. Lakebase Postgres addresses this with an autoscaling feature that eliminates manual sizing, utilizing in-place VM resizing and a monitoring algorithm for CPU, memory, and working set size. Lakebase Postgres separates compute and storage layers, allowing independent resizing of compute nodes without affecting the database. The autoscaling algorithm relies on three signals: CPU load (cpuGoalCU), memory use (memGoalCU), and compute-cache working set size (lfcGoalCU). The CPU load is monitored every five seconds, aiming to maintain it at or below 90% capacity. Memory usage is tracked at two frequencies: overall memory every five seconds and Postgres-specific memory every 100 milliseconds, with a goal to keep usage below 75% of allocated RAM. The compute cache evaluates active data access efficiency, adjusting size based on workload. The working set is estimated using a modified HyperLogLog algorithm that records timestamps for page accesses, allowing for distinct page estimates over various time frames. The algorithm projects future working-set growth to allocate sufficient cache while capping it at 75% of RAM. Resizing the compute involves four components: the autoscaler-agent, vm-monitor, Kubernetes scheduler, and NeonVM. Scaling up occurs when any of the three goals indicate a need for more resources, while scaling down includes verification to ensure sufficient memory remains for operations. Timely adjustments in both directions are prioritized to minimize costs.

AppWizard

August 30, 2026

New JK Terror Tactic: Pornography Apps, Tor Network Used For Secret Messaging

Security agencies in India have observed a shift in the tactics of terrorist groups, which are now using pornography websites and niche encrypted applications for communication instead of traditional social media. These groups, often collaborating with Pakistan's ISI, utilize platforms with real-time chat tools disguised as dating services to send instructions to recruits in Jammu and Kashmir. Security agencies are monitoring various digital tools, including Tor-based applications like Coatex and Conion, which obscure user identities. Some privacy-focused platforms do not require phone numbers for registration, complicating tracking efforts. Despite bans on certain pornography applications in India, they are still accessed illegally via VPNs, which mask users' IP addresses. The use of the Tor network presents additional tracking challenges, as it obscures data origins and destinations. Security agencies are adapting their surveillance methods in response to these developments, which include the use of virtual SIM cards in terrorist activities, as highlighted during investigations into the 2019 Pulwama attack.

Winsage

August 23, 2026

Microsoft is updating Windows Production CA, IT admins and devs should take action ASAP

Microsoft is updating its Windows certificate framework, focusing on Secure Boot certificates and the expiration of certain Windows 11 Insider certificates. A new certificate update is crucial to prevent disruptions in applications and IT processes. Microsoft is phasing out outdated certificates and modernizing signing algorithms, with the Windows Production Public Certificate Authority (PCA) 2011 set to expire on October 19, 2026. It will be replaced by a new PCA, and stronger signing algorithms like RSA-3072 and SHA-384 will be adopted later this year. Applications relying on outdated technologies may fail due to these updates. IT administrators and application developers are advised to review software, adopt algorithm-agnostic approaches, test certificate changes, and check private trust stores for issues. The timeline includes the PCA expiration in 2026, a transition to stronger configurations later that year, and a default to post-quantum cryptography (PQC) in 2027, with ongoing updates as security needs evolve.

Winsage

August 15, 2026

After years of requests, Windows 11 is dangerously close to bringing back full taskbar freedom — top, left, right, or bottom

Windows 11 users can now relocate the taskbar to the top or sides of the screen with the latest Insider Preview builds. This feature will be included in the September Patch Tuesday update, but is available immediately to those in the Release Preview Channel. The update also allows for a smaller taskbar option, enhancing screen space for smaller devices. Key features in Build 26100.9267/26200.9267 include: - Taskbar customization with new positioning options and a smaller taskbar option. - Enhanced Start menu with size options, renaming of the Recommended section to Recent, and a redesigned settings page. - Improvements to Windows Search, including a simplified interface and automatic indexing of frequently used folders. - Updates to File Explorer for faster launch times and touch scrolling support. - General design updates with modernized progress indicators. - New Windows Share feature for discovering apps from the share window. - Enhanced security with just-in-time privileges for administrative tasks. - Improved responsiveness when switching between virtual desktops. - Updates for display settings and brightness reliability. - Reliability improvements for Task Manager and Windows Update behavior. - Network improvements for VPN-related issues. - Enhanced typing reliability with the Japanese IME. - Introduction of the ML-KEM algorithm for TLS key exchange. - Removal of the Windows Management Instrumentation Command-line utility in future versions.

BetaBeacon

August 3, 2026

Roblox says new ‘Slim’ tech will let complex avatars run on low-end Android as it pushes mobile-first game creation

Roblox has introduced Slim, a new avatar compositing technology aimed at enabling more complex avatars to operate smoothly on low-end Android devices.

AppWizard

July 31, 2026

Gamers compress 80TB map of Minecraft’s oldest anarchy server down to a 15TB download

A team of Minecraft enthusiasts has mapped the entire 2b2t server, resulting in a 15TB compressed download that can expand to an 80TB archive. The project, known as the 2b2tplace preservation initiative, began in 2024 and concluded in April 2026 after 22 months of work using 28 bot accounts to map over one million blocks across the Overworld, Nether, and End dimensions. The team developed a custom compression format (.zvcr) to achieve an 81.25% space savings, allowing the data to be stored more efficiently. The 2b2t server, which has been operational since 2010, is known for its lack of rules and moderation, fostering a unique anarchic environment. Despite preservation efforts, concerns exist among players about the server drifting from its original spirit.

Tech Optimizer

July 30, 2026

Generating Referentially Consistent Synthetic Test Data for PostgreSQL in .NET Application Modernization

Satyajit Gokhale, Aiswaryaa Venugopalan, Ruchi Agarwal, Nits Jeganathan, Khurram Khawaja, Vijay Mandadi, and Luke Huan contributed to this article. AWS Transform offers a .NET application modernization service that allows enterprise customers to migrate from Microsoft SQL Server to Amazon Aurora PostgreSQL Compatible Edition. This migration reduces licensing costs and enhances scalability while utilizing an open-source ecosystem. Schema conversion tools can assist in translating DDL to PostgreSQL-compatible definitions, but correctness must be verified by teams to ensure performance under real-world workloads. Traditional testing methods, such as using production data or manual checks, are not scalable and raise privacy concerns. Therefore, there is a need for realistic synthetic data generated at scale that adheres to the migrated schema's constraints. AWS Transform for SQL Server modernization employs an AI agent to generate constraint-respecting synthetic data at scale during the migration workflow. This process involves loading the PostgreSQL schema into a live database, constructing a dependency graph for data generation, and distributing tasks across multiple sub-agents. The agent validates each generated INSERT against the live database, ensuring compliance with constraints and providing error diagnostics for any violations. The synthetic data generation workflow consists of four stages: schema analysis, establishing generation order, distributing tasks across sub-agents, and validation with error recovery. The agent extracts metadata from the PostgreSQL schema, determines a valid table generation sequence, parallelizes data generation while maintaining referential integrity, and generates and validates data row-by-row against the live database. Each successful insertion enriches the context for subsequent generations, while errors are handled through structured diagnostics and iterative regeneration. The process ensures referential integrity and preserves the generation state, allowing for recovery from interruptions without data loss.

AppWizard

July 27, 2026

This week in PC games: a battle royale detective game, a broken Y2K metaverse, a laptop tycoon sim, and a new Company of Heroes RTS

- Endacopia: A point-and-click horror game inspired by 90s edutainment software. - Broken Reality 2000: A first-person puzzle-platforming adventure set in a Y2K-themed metaverse. - Plum Road Tea Dream: A semi-autobiographical journey of a queer POC developer through seven distinct graphical worlds. - Moon Crashers: A game where players gather resources to build an escape rocket after crash-landing on the moon. - Forsaken Realms: Vahrin's Call: A third-person fantasy adventure set in a beleaguered city. - Kinny and the Cosmic Cauldron: A roguelike deckbuilder where players create soups for eldritch clientele. - Dissolution of the Silent Union: A narrative with gloomy anime aesthetics and themes of decay. - Orbital Hell: A hallucinatory score-attacker game battling geometric boglins. - Désorienté: A narrative-driven experience set in a violent world with intestines as currency. - CipherMind: A battle royale detective game for eight players in a concrete labyrinth. - Lunarium: An action-RPG featuring a knight and a floating sorceress. - Company of Heroes 3: Final Stand: A strategic spin-off involving tactical gameplay against waves of enemies. - Joy Malignant: A dice-based RPG set in a city filled with despair. - Truck-kun is Supporting Me from Another World?!: A humorous isekai game featuring a truck driver. - Outfield: An exploration of agricultural growth and its implications. - Olga: A cozy adventure game without combat. - Legacy of Sail: A nostalgic real-time naval tactics game. - Culdcept The First: A modern adaptation of a board/card game fusion. - Mistfall Hunter: A PvPvE extraction RPG. - Turnip Mountain: A 2D climbing simulator in a whimsical world. - Signy & Mino: Against All Gods: A side-scrolling RPG featuring a girl and her dog. - Devil's Hand: A card game where players form poker hands on a grid. - Parkside: Decayed Soul Manipulation: A sim shooter set in a dystopian California. - Cloud Sculptor: A 3D puzzle-platformer where players create sculptures for ghosts.

Winsage

July 20, 2026

Enable BitLocker on Windows 11: 11 Steps, 45 Min [2026]

A stolen laptop can lead to a significant data breach, particularly when taken from public places. Windows 11 has introduced BitLocker, a full-disk encryption feature that became mandatory for Australian businesses in 2026. The Office of the Australian Information Commissioner reported 766 notifiable data breaches in the latter half of 2024, with unauthorized access to devices being a major cause. Full-disk encryption is crucial for compliance with the Essential Eight framework, which mandates data protection on portable devices. BitLocker ensures that data on an encrypted drive becomes unreadable if the drive is removed and connected to another computer. It aligns with the Essential Eight framework, requiring evidence of encryption rather than just claims of protection. There are three types of encryption on Windows 11: Device Encryption, BitLocker Drive Encryption, and File-Level Encryption. BitLocker is available only on Windows 11 Pro and higher editions. To use BitLocker, certain prerequisites must be met, including having Windows 11 Pro or higher, a Trusted Platform Module (TPM) 2.0, UEFI firmware with Secure Boot enabled, and local administrator rights. The process to enable BitLocker involves confirming the edition, checking TPM status, enabling BitLocker through Windows Settings or PowerShell, and backing up the recovery key. Organizations can deploy BitLocker fleet-wide using Microsoft Intune, and additional security measures like TPM+PIN can be implemented for pre-boot authentication. Common pitfalls during BitLocker rollout include skipping recovery key backup and assuming that Home edition machines are covered. Troubleshooting common BitLocker issues involves identifying symptoms and applying appropriate fixes. Advanced tips for enhancing security include suspending BitLocker before maintenance and auditing compliance at the fleet level. BitLocker is integral to protecting data on portable devices, and compliance documentation is essential for proving that every device has an active recovery key.

AppWizard

July 6, 2026

Circle Generator Minecraft: Build With a Circle Chart

Building a circle in Minecraft involves using a block grid, which can be challenging due to the need for specific block patterns for different diameters. A Minecraft circle graph visually represents a circle on this grid, where filled cells indicate placed blocks and empty cells are unoccupied. The Bresenham circle algorithm is used to create these graphs, making it a standard method for rendering curves in the game. A circle generator allows players to input a desired diameter and receive a grid layout to follow, ensuring accuracy in construction. To read a circle chart, players look at a square grid filled with filled and empty squares, placing blocks according to the layout row by row. For three-dimensional builds, the pattern is replicated across height layers. Odd diameters have a single center block, while even diameters have a 2x2 center, simplifying calculations. Optimal circle sizes for aesthetic results start from 15 blocks, with smaller circles often appearing more octagonal. Recommended diameters include 15-25 blocks for towers, 40-60 blocks for arenas, and starting from 30 blocks for domes. Errors can be corrected by comparing the current row with the generator's output and making adjustments. Large circles, such as those with a 60-block diameter, can strain server resources, making it essential to use a stable server for accurate block placement.