performance degradation

Winsage
July 4, 2026
Windows 11 allows users to limit RAM usage through the System Configuration tool (msconfig) for testing and troubleshooting purposes. Users can specify the maximum memory in megabytes, but there is no simple option to set a fixed amount like "4GB of RAM." Limiting RAM can degrade performance and may cause applications to become sluggish. To limit RAM, users must navigate to the Boot tab in msconfig, check the Maximum memory option, and enter the desired amount. To restore full RAM access, users need to uncheck the Maximum memory option in the same tool. On some modern systems with UEFI firmware and Secure Boot enabled, the Maximum memory setting may not be accessible, and disabling Secure Boot may be necessary to apply the limit. Disabling Secure Boot can reduce security against boot-level malware.
Winsage
June 30, 2026
Recent reports indicate that AMD's driver is disabling Smart Access Memory (SAM) on Windows 10 systems, resulting in reduced gaming performance. Users have experienced issues such as game crashes and improper recognition of Radeon graphics cards. Many have uninstalled the AMD driver using Display Driver Uninstaller (DDU) and performed a clean installation, but SAM remains disabled in the Adrenalin software despite BIOS settings being unchanged. Notifications from Windows 10 suggest a conflict between the AMD driver and the operating system. AMD is investigating the issue and has released a preview driver version 26.6.3 to address compatibility problems for RX 7000 series GPUs. Temporary workarounds have been suggested by users, including checking monitor refresh rates and rebooting systems.
Tech Optimizer
June 20, 2026
The dashboard operates on a Django monolith with PostgreSQL and is transitioning to ClickHouse for denormalization. The initial p50 metric was 0.7 seconds, but the p95 was 8 seconds, which was reduced to 1 second. Observability tools were established to monitor performance, and slow HTTP requests were identified using OpenTelemetry traces. Optimization techniques included late joining, asynchronous counting, creating a PostgreSQL replica for read operations, and improving full-text search. Denormalization was explored to enhance filtering performance by creating composite indexes. The production stack was upgraded to PostgreSQL 18, which provided incremental performance improvements. The final p95 value achieved was 1 second, below the target of 3 seconds.
Winsage
June 18, 2026
Former Microsoft engineer Dave Plummer reflected on software performance challenges during the '90s, specifically the limitations of machines with 12 MB of RAM. He discussed the Basic Block Tool (BBT), which optimized software binaries by reorganizing their structures to enhance execution speed. A typical binary contained around 10 MB of code, but only about 300 KB was necessary for startup. If this essential code was scattered, it led to performance degradation due to excessive page access. BBT defragmented binaries, grouping related code to streamline access and improve user experience, particularly for large products like Windows and Office. Modern tools like BOLT and HP's Dynamo continue to optimize binary layouts and runtime code, but Plummer cautioned about the risks of manipulating binaries. He noted that while computational power has increased, modern software faces similar performance challenges, with larger binaries and complex dependency graphs. He emphasized the importance of locality in software design, advising to keep hot data and code together to enhance performance.
AppWizard
May 22, 2026
Valve has released the SteamOS 3.8.5 Beta, which includes bug fixes and enhancements for the Steam Deck and other devices like the Asus ROG Ally and Lenovo Legion Go. Key improvements include a fix for audio issues on the Steam Deck OLED, enhancements to video memory management for discrete GPUs, and a resolution for a bug in Desktop Mode. The update also includes stability and security updates, a fix for the Asus ROG Ally's control behavior after suspend, and improvements from the previous 3.8.4 Beta, such as solutions for WiFi performance issues and trackpad sensitivity adjustments. Users can join the beta by navigating to Settings > System > System Update Channel.
Winsage
May 19, 2026
Microsoft has acknowledged that faulty third-party drivers have caused significant battery drain and performance issues in Windows 11 and earlier versions. This issue, referred to as a "blind spot," has affected users through high latency, audio glitches, graphics errors, and micro-stuttering. To address this, Microsoft is implementing a more rigorous driver evaluation process that assesses the impact of drivers on power consumption and performance. Changes include improved battery management during standby mode, enhanced scrutiny of driver performance, early collaboration with developers, a stricter approval process for third-party drivers, and an automatic rollback feature via Windows Update to revert to older, compliant drivers.
AppWizard
April 29, 2026
A group of hackers has declared Denuvo, a digital rights management (DRM) software, as "fully useless" after successfully bypassing its protections, which have been in place since 2014. They achieved this through two main strategies: direct cracking, which removes Denuvo from games, and hypervisor bypass, which deceives Denuvo into functioning normally. These methods have been applied to games like Crimson Desert and Resident Evil Requiem. Recently, a prominent hacker announced the release of hypervisor bypasses for EA Sports games, confirming that all games using Denuvo can now be played for free.
Tech Optimizer
April 5, 2026
An AWS engineer reported a significant drop in PostgreSQL throughput on Linux 7.0, with performance reduced to approximately half of its previous capability. Benchmark tests showed that the removal of the PREEMPT_NONE scheduling option was the main cause of this regression. On a 96-vCPU Graviton4 instance, throughput measured at just 0.51x compared to earlier kernel versions. Salvatore Dipietro from Amazon/AWS conducted benchmarking analysis of PostgreSQL 17, revealing that Linux 7.0 delivered only 0.51x the throughput of its predecessors. The root cause was traced to kernel commit 7dadeaa6e851, which eliminated PREEMPT_NONE as the default option, leading to increased contention due to the new PREEMPT_LAZY model. Profiling data indicated that 55% of CPU time is consumed by spinning in PostgreSQL’s spinlock, causing significant performance degradation. When a revert patch was applied, throughput rebounded to 1.94x the baseline. The decision to restrict preemption modes in Linux 7.0 aimed to address issues within the kernel's scheduling model. Dipietro proposed a patch to restore PREEMPT_NONE, but kernel developers suggested PostgreSQL adopt the rseq time slice extension instead. Database operators running PostgreSQL on Linux face potential performance reductions with the upgrade to Linux 7.0.
Tech Optimizer
March 28, 2026
Bitdefender is known for its effective early threat detection and elimination, reflected in high scores from independent lab evaluations. The current deal offers the complete all-in-one security suite at a competitive price, allowing users to upgrade from standard protection. Bitdefender operates in the background, providing real-time scanning of files, links, and downloads for safe browsing. The suite includes virus detection, web protection, ransomware defenses, a built-in VPN, a password manager, and anti-tracking capabilities. It offers proactive protection, such as scanning downloads on public Wi-Fi to prevent security risks. Bitdefender is resource-efficient, allowing users to run it without significant impact on system performance. The current sale makes it easier to justify moving from free tools to a comprehensive solution, especially given the sensitivity of information stored on devices.
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