evaluation Archives

AppWizard

May 22, 2025

Telegram CEO Pavel Durov launches $50K viral video contest to expose WhatsApp’s ‘cheap copycat’ moves | – The Times of India

Telegram has launched a contest with a prize pool of 0,000 inviting participants to create a viral video that showcases Telegram's technological innovations compared to WhatsApp. The contest was announced on May 19, 2025, and submissions are due by May 26, 2025. It is open to global participants, with videos required to be in English and suitable for platforms like TikTok and Instagram Reels. The contest allows the use of AI tools and evaluates entries based on clarity, visual impact, meme potential, and virality. Pavel Durov, the founder of Telegram, has publicly accused WhatsApp of smear campaigns and emphasizes Telegram's commitment to privacy and political neutrality, rejecting government requests to censor political content. The contest aims to expand Telegram's user base and engage content creators by promoting its unique features, which include end-to-end encrypted chats, large group chats, bots, and advanced privacy controls. Winners will be announced in June 2025.

Tech Optimizer

May 21, 2025

Achieve up to 1.7 times higher write throughput and 1.38 times better price performance with Amazon Aurora PostgreSQL on AWS Graviton4-based R8g instances

Upgrading to Graviton4-based R8g instances with Aurora PostgreSQL-Compatible 17.4 in an Aurora I/O-Optimized cluster configuration results in significant performance improvements. The new instances provide up to 1.7 times higher write throughput, 1.38 times better price-performance, and reduce commit latency by up to 46% on r8g.16xlarge instances and 38% on r8g.2xlarge instances compared to Graviton2-based R6g instances. The Amazon Aurora PostgreSQL-Compatible Edition now supports AWS Graviton4-based R8g instances and PostgreSQL 17.4, which introduces performance enhancements for I/O-Optimized configurations, optimizing write operations and batch processing. R8g instances offer up to 192 vCPUs and 1.5 TB of memory, supporting larger configurations and providing up to 50 Gbps of network bandwidth. PostgreSQL 17 includes vacuum improvements, eliminates the need to drop logical replication slots during upgrades, and expands SQL/JSON standards. Aurora PostgreSQL-Compatible separates compute from storage, enabling independent scaling and maintaining six-way replication for durability, while processing changes as log records to reduce I/O operations. Performance benchmarks using HammerDB show improvements in throughput and commit latency across various workloads. For small workloads on 2xlarge instance size, throughput increased by 50.25% and commit latency improved by 33.87%. For medium workloads on 16xlarge instance size, throughput increased by 30% and commit latency improved by 17.44%. The most significant performance benefits arise from combining hardware upgrades from Graviton2 to Graviton4 with database engine upgrades from PostgreSQL 15.10 to 17.4. For small workloads, throughput increased by 70% and commit latency improved by 38.71%. For medium workloads, throughput increased by 70% and commit latency improved by 46.67%. Cost efficiency is also enhanced, with a 38% improvement in price performance and a 61.26% improvement in price-performance ratio when comparing Graviton2 and Graviton4 instances. Reserved Instances for Graviton4-based R8g instances offer additional cost-optimization opportunities.

Tech Optimizer

May 16, 2025

Best antivirus software for Windows 2025, tried and tested

Antivirus software has been a common tool for PC users over the past two decades, with many opting for third-party solutions for enhanced protection despite Windows 11's built-in features. User behavior significantly impacts computer security, emphasizing the importance of avoiding unknown links and not reusing passwords. Antivirus packages are designed to combat threats like ransomware, spyware, and viruses. The evaluation process for antivirus applications involved testing on a Windows 11 PC with simulated virus attacks and scanning the SSD for performance metrics. The top antivirus apps for 2025 include BitDefender Total Security (£49.99), Avira Free (free), Malwarebytes Plus (£49.99), and Sophos Home Premium (£37.46).

Winsage

May 15, 2025

Windows 10 is dying, hardware is pricey, and Citrix says VDI will save you

Citrix is promoting its virtualization platforms to address rising hardware costs and upcoming U.S. tariffs effective April 2025. Vice President Philipp Benkler suggested that organizations could extend the lifespan of existing hardware by using eLux, an operating system acquired from Unicon. As businesses face the end-of-life for Windows 10 and the transition to Windows 11, Citrix advocates for deploying centrally managed remote desktops from existing endpoints through its virtual desktop infrastructure (VDI) platform. However, VDI implementation can face challenges such as "boot storms," which may lead to performance issues. Citrix recommends its NetScaler platform to manage these challenges without requiring additional hardware. While Citrix's approach aims to mitigate tariff-related costs, the company has increased its licensing prices, necessitating careful evaluation by organizations considering VDI. Security concerns also arise with NetScaler, as it is often targeted by cybercriminals, potentially introducing vulnerabilities. The effectiveness of Citrix's solution depends on each organization's IT landscape, budget, and ability to manage technical complexities.

Tech Optimizer

May 13, 2025

Best antivirus software 2025, tried and tested

Antivirus software has been essential for PC users for two decades, with advertisements emphasizing its importance. Windows 11 includes built-in security features, but many users prefer third-party antivirus solutions for quicker updates and additional benefits. User behavior significantly impacts computer security, and it is recommended to avoid links from unfamiliar email senders and not to reuse passwords. A comprehensive evaluation of antivirus applications involved testing on a Windows 11 PC using simulated virus attacks. The testing included scanning the SSD and consulting independent security testing laboratories. The best antivirus software for 2025 includes BitDefender Total Security as the best overall, Avira Free as the best free option, Malwarebytes Plus for the best VPN bundle, and Sophos Home Premium for protecting multiple devices.

AppWizard

May 9, 2025

You can now verify if your Mullvad VPN app is legit

Mullvad has introduced reproducible builds for its Android VPN application starting with version 2025.2, allowing users to confirm the legitimacy of the app before installation. Reproducible builds ensure that identical copies of the application can be recreated from the same source code, build environment, and instructions, providing assurance against unauthorized modifications. This decision follows a rise in malicious free VPN applications and malware distribution through counterfeit software. Currently, only the latest version of Mullvad's Android VPN app features this capability, with no confirmed plans for other platforms. Mullvad encourages technically skilled users to verify the builds and has provided instructions for the verification process.

Tech Optimizer

May 8, 2025

The Search Stack That Nearly Broke Us — Until We Did This

The initial architecture for the finlight.me real-time financial news API utilized Postgres full-text search, which was effective for early needs but faced limitations as article volume increased. Key challenges included performance degradation due to the inability to combine GIN indexes with regular B-Tree indexes, leading to slow query performance, especially with complex user queries and pagination. The decision was made to transition to OpenSearch for its optimized search capabilities while retaining Postgres as the source of truth for data integrity. Testing with OpenSearch revealed the need for production-grade resources, which led to a successful deployment that improved search response times significantly. The current architecture separates ingestion, storage, and retrieval responsibilities, with Postgres managing data storage and OpenSearch handling user-facing search queries. Regular snapshotting and thoughtful index management ensure resilience and scalability.

AppWizard

May 8, 2025

Props for the honesty: Tim Sweeney says the reason ‘people characterize the Epic Games launcher as clunky’ is—wait for it—’because the Epic Games launcher is clunky’

Tim Sweeney, CEO of Epic Games, described the Epic Games Store launcher as "clunky" and acknowledged that many users find it slow and cumbersome compared to Steam. The Epic launcher received a score of 41% in a recent evaluation, ranking behind competitors like the Microsoft Store and EA, and significantly trailing Steam and GOG Galaxy. Performance issues vary based on a user's proximity to a content delivery network and the size of their game library, with slower internet connections exacerbating loading frustrations. Sweeney believes the Epic launcher should incorporate convenient features from Steam while maintaining its unique advantages. He emphasized the importance of connecting players across platforms and criticized Valve for not allowing cross-platform functionality with Steamworks. Sweeney also addressed negative backlash against developers using Epic Online Services, citing harassment related to crossplay features. Users seeking alternatives to the Epic launcher can consider GOG Galaxy or Heroic, which are noted for better functionality.

Tech Optimizer

May 5, 2025

VIPRE Advanced Security Awarded Highest Ranking in AV-Comparatives’ Malware Protection Test 2025

VIPRE® Advanced Security received the Advanced+ award from AV-Comparatives in the March 2025 Malware Protection Test for its effectiveness against cyber threats. The test evaluated 19 security products using 10,030 malware samples on a Windows 11 system, focusing on both online and offline threats. VIPRE achieved a 98.7% detection rate in all scenarios, a 99.93% overall protection rate during execution testing, and had one of the lowest false positive counts among the products tested. VIPRE's security solutions are integrated into other Ziff Davis products, enhancing their protection capabilities. VIPRE is a subsidiary of Ziff Davis, Inc., specializing in cybersecurity solutions with over 25 years of experience.

Tech Optimizer

April 24, 2025

Meet Xata Agent: An Open Source Agent for Proactive PostgreSQL Monitoring, Automated Troubleshooting, and Seamless DevOps Integration

Xata Agent is an open-source AI assistant designed for PostgreSQL database site reliability engineering. It monitors logs and performance metrics to identify issues like slow queries and unusual connection counts, helping to maintain database integrity and performance. The tool automates tasks such as vacuuming and indexing and provides actionable recommendations through diagnostic playbooks and read-only SQL routines. The architecture is built as a Next.js application using TypeScript, organized in a monorepo structure. Developers can set up their environment using Node, install dependencies, and configure a local PostgreSQL instance with Docker Compose. Production deployment involves using Docker images and configuring environment variables in a production file. Key functionalities include proactive monitoring, configuration tuning, performance troubleshooting, safe diagnostics, cloud integration, alerting, LLM flexibility, and playbook customization. Developers can create new tools and integrate them into playbooks for cohesive workflows. Future plans include custom playbooks, support for Model Context Protocol, evaluation harnesses, approval workflows, and a managed cloud edition. The architecture promotes extensibility and community contributions, standardizing incident response and reducing human error in database management.