system efficiency Archives

Tech Optimizer

July 14, 2025

The performance engineer: a detective licensed to kill… bottlenecks

A SQL query initially took fifteen hours to process, but after performance engineering adjustments by Vadim Laktushin, it was reduced to two minutes. Performance engineers (PEs) work to enhance IT system efficiency by identifying and resolving performance bottlenecks in application code, database management systems, configurations, and hardware. Vadim transitioned from a developer to a performance specialist at Postgres Professional after exploring benchmarks and system tuning. Performance issues often require complex solutions rather than straightforward fixes. For example, a client migrating from Oracle to PostgreSQL faced delays due to the Write-Ahead Log (WAL), which became a bottleneck during heavy write operations. PEs adhere to principles such as proactive analysis, reliance on data, and caution against quick fixes. Essential skills for PEs include programming, Linux expertise, understanding algorithms, statistical thinking, and effective communication. The future of performance engineering may involve specialization, and while AI can assist, it cannot replace human expertise in optimization tasks.

Tech Optimizer

June 28, 2025

Norton AntiVirus Plus for Mac

Windows is the primary target for malware attacks, leading to a focus on antivirus applications for the platform, while macOS users have fewer options. Norton AntiVirus Plus for Mac offers robust cross-platform protection and has received perfect scores from independent testing labs, excelling in phishing protection. It is priced at approximately .99 annually for a single license and .99 for a five-license subscription. Norton supports the latest three macOS versions: Sequoia (15), Sonoma (14), and Ventura (13). The Gen stack, a new antivirus engine, consolidates technology from Norton, Avast, and AVG, ensuring consistent performance. Norton achieved a perfect score of 18 points in independent testing, with a 100% detection rate for Mac malware and Windows-specific threats. It offers flexible scanning options, with quick scans completing in 30 seconds and full scans in 27 minutes. Norton has a 100% detection rate for phishing sites and includes a smart firewall and intrusion prevention system. Its password manager offers basic functions but lacks advanced features. Norton Genie is an AI-based scam detection tool integrated into the ecosystem. The software includes performance improvement tools like File Cleanup and Startup Manager, but privacy components require separate purchases.

Winsage

June 8, 2025

Microsoft is finally tidying up the Search options in the Windows 11 Settings page

Microsoft is updating the Settings page in Windows 11 by merging the "Search permissions" and "Searching Windows" settings into a single page to improve navigation and visual appeal. This change, discovered by a user known as PhantomOfEarth, is currently in development and not yet available on the main Windows 11 branch, but can be previewed by users on Insider builds 26200.5622/26120.4230 by enabling feature ID 57471391. An official rollout is expected soon.

Tech Optimizer

May 14, 2025

Best Antivirus Software (2025): ESET Recognized as Top Cybersecurity Solution by Software Experts

ESET is recognized as a leading antivirus provider in 2025, known for its robust security solutions that effectively combat rising cyber threats such as phishing, ransomware, and zero-day exploits. The company's offerings include heuristic and behavioral detection, ransomware and phishing protection, exploit blocker technology, and low resource usage, ensuring minimal impact on system performance. ESET provides various products for home users, including ESET HOME Security Essential, Premium, and Ultimate, as well as a Small Business Security package for up to 25 devices and scalable solutions for larger organizations. Pricing for home products starts at .99/year, with multi-device and multi-year discounts available. ESET operates in over 200 countries, utilizing a global network for real-time threat intelligence and maintaining a commitment to effective digital security since its establishment in 1992.

AppWizard

May 11, 2025

This new requirement for Android apps is something we need, even if it’s not sexy

Google has announced that all Android applications will be required to support 16 KB page sizes starting November 1st, 2025. This change aims to enhance system efficiency and performance by allowing better resource allocation and reducing memory management tasks. Memory management units operate on a page size basis, and increasing the page size fourfold will streamline processes and improve user experience. All new apps and updates targeting Android 15+ devices must comply with this requirement.

Tech Optimizer

April 30, 2025

5 Free Antivirus Programs To Eliminate Malware and Viruses (2025)

Users are increasingly seeking effective malware protection without the cost of premium software, leading to the emergence of free antivirus programs that offer robust security features. This trend is particularly beneficial for Windows 11 users who want real-time protection while staying within budget. Several leading cybersecurity firms provide free antivirus solutions equipped with advanced features such as real-time scanning, phishing defenses, cloud-based malware detection, and system optimization tools. These free programs can adequately protect a diverse audience, including gamers, remote workers, students, and casual users. Top free antivirus programs for Windows 11 in 2025 include: 1. Bitdefender Antivirus Free: Utilizes the same malware engine as its paid version, offers real-time detection, anti-phishing protection, and is ultra-light on system resources. 2. Microsoft Defender Antivirus: Integrated into Windows 11, provides cloud-delivered protection and built-in ransomware mitigation without ads. 3. Avast Free Antivirus: Offers additional tools like network scanning and a Do Not Disturb mode for gaming. 4. AVG AntiVirus Free: Features a simpler interface, link and attachment protection, and fewer pop-ups. 5. TotalAV Free Antivirus: A newer option with a clean interface, real-time protection, and a junk file cleaner. Key factors to consider when selecting free antivirus software include real-time protection, low resource usage, minimal intrusion, and extra security tools. While free solutions are suitable for most users, premium protection may be necessary for small businesses or those handling sensitive data. For gamers, Bitdefender and Avast are recommended for their low system impact and gaming modes. For remote workers, Microsoft Defender and TotalAV are highlighted for their ease of use and integrated protections. Essential features of effective antivirus programs include robust virus protection, real-time scanning, and a behavior shield to detect new threats. Performance should not significantly slow down the system, and the interface should be user-friendly. Experts recommend Windows Defender for basic protection, with AVG and Avast receiving endorsements for their feature balance, while Bitdefender Free is noted for its detection rates and minimal system impact. Free antivirus programs may lack advanced features and technical support compared to paid versions.