CPU utilization Archives

Winsage

August 20, 2026

Microsoft brings improved Windows 11 hardware monitoring with upgraded Task Manager

Microsoft released a guide to optimize internet bandwidth usage for Windows 11 update downloads, focusing on policy settings for network efficiency. Enhancements to Task Manager include new columns for monitoring NPU (Neural Processing Unit) and NPU Engine usage, allowing users to see which applications leverage the neural processor. Additional columns for NPU Dedicated Memory and NPU Shared Memory provide insights into memory consumption for AI workloads. Neural engines in GPUs will also be visible on the Performance page. An optional Isolation column has been added to help users evaluate AI workload management. Applications optimized for NPUs will show specific designations in Task Manager, while high CPU usage with idle NPU indicates underutilization of dedicated AI hardware. Users can activate new metrics by right-clicking on column headers in Task Manager.

Winsage

August 12, 2026

Windows 11’s faster app launches released today, enable it using these steps

Windows 11 introduced the Low Latency Profile feature with the August 2026 security update, enhancing app launch speeds. This feature allows the CPU to quickly reach near-maximum frequency when an application is launched, improving loading times and conserving energy by returning to low-power idle states more rapidly. Initially limited to core Windows shell elements, the August update (KB5121003) expanded this functionality to a wider range of applications. Testing showed significant improvements in app launch times, with no adverse effects on CPU performance or battery life. Users can manually enable the feature using the ViVeTool if it hasn't been rolled out to them yet. Microsoft is also working on optimizing Windows 11 for devices with 8GB of RAM and above by the end of 2026.

Winsage

June 22, 2026

I forced Windows 11’s CPU boost on a 10-year-old PC, and it feels surprisingly new

Windows 11 has introduced the Low Latency Profile to enhance the responsiveness of the Start menu, Search, and Action Center by rapidly increasing CPU frequency during user interactions. Testing on a Lenovo ThinkCentre M700 Mini Desktop with a 6th Generation Intel Core i3-6100 processor showed that the Low Latency Profile could be activated via the June 2026 Patch Tuesday update (KB5094126) and the third-party tool ViVeTool. Initially, no significant CPU frequency spike was observed, but after enabling the feature, the CPU frequency increased from approximately 800MHz to 3.0GHz and then to 3.7GHz almost instantaneously during interactions. This resulted in a marked improvement in the responsiveness of the Start menu and Action Center, with the latter showing the most significant enhancement. The Low Latency Profile effectively improved performance on older systems without adverse effects on battery life or thermal output.

Winsage

May 8, 2026

Microsoft Is Testing a Windows 11 Feature That Maxes Out CPU Speed for Faster App Launches

Microsoft is developing a feature called the "Low Latency Profile" for Windows 11, part of the Windows K2 initiative, aimed at enhancing app launch speeds by temporarily boosting the CPU core to its maximum frequency for 1 to 3 seconds. This feature has shown to reduce launch times of Microsoft’s in-box applications, such as Edge and Outlook, by approximately 40%, and improve the speed of system functions like the Start Menu and context menus by up to 70%. While this approach may increase CPU temperatures and potentially drain battery life faster on laptops, it is expected that the benefits in performance will outweigh the drawbacks. The Low Latency Profile is similar to previous Microsoft efforts, such as preloading the File Explorer at startup, and aims to optimize CPU performance for short durations without significantly impacting user experience.

Winsage

April 22, 2026

I just found out the creator of Windows Task Manager accidentally left his phone number inside the app

Dave Plummer, the creator of the original Task Manager at Microsoft in the 1990s, encountered an issue where CPU utilization readings occasionally exceeded 100%, which he suspected was a bug in the kernel. Despite being a user interface designer and facing skepticism from the kernel team, he implemented 'asserts' in the code to diagnose the problem. One assertion specified that CPU usage should not exceed 100%, and he embedded his name and home phone number in the code for anyone who might encounter the issue. No one ever contacted him about the bug, and it remained unresolved until the kernel developers identified and fixed it later.

Winsage

April 22, 2026

‘A performance tool that requires a graduate seminar before breakfast has already lost the room’: Why Windows Task Manager looks like it’s getting CPU usage wrong

Users have expressed frustration with Windows 11's Task Manager CPU usage reporting, believing it relies only on base clock speeds. Dave Plummer, the original architect of Task Manager, indicated that discrepancies may arise from average calculations and inherent compromises in the metrics. In response, Microsoft announced a fix in a recent Preview build, stating that Task Manager will now use standard metrics for CPU utilization across all pages to align with industry standards. Plummer also suggested a distinct Windows mode for power users to enhance flexibility.

Winsage

April 20, 2026

Original Task Manager creator explains why it lies to you about CPU usage — former Microsoft engineer shows unique solution to a seemingly simple, but actually complicated, task

Dave Plummer, a former Microsoft engineer and architect of the original Task Manager, explained the complexities of measuring CPU usage. He noted that the process is not as simple as it seems, as CPU activity can vary across different cores and the timing of measurements can influence results. The Task Manager accounts for various states of CPU activity, including user mode, kernel mode, interrupt time, deferred procedure calls, and idle loops, making the measurement of CPU utilization a complex task rather than a straightforward one.

Tech Optimizer

April 8, 2026

PostgreSQL logical replication: How to replicate only the data that you need

Many organizations using PostgreSQL face challenges in replicating data across different logical databases while controlling shared information. PostgreSQL 15 introduces native logical replication with column-level and row-level filtering within publications, allowing precise control over data transfer between PostgreSQL databases. Logical replication operates on a publish-subscribe model, where the source database logs changes to the Write-Ahead Log (WAL) and applies publication filters to transmit only the relevant data to the target database. Two filtering modes are available: column-level filtering allows users to specify which columns to replicate, while row-level filtering uses WHERE clauses to determine which rows to include. Both filtering modes can be combined in a single publication. The SQL syntax for creating publications and subscriptions is consistent across various PostgreSQL environments, with specific configurations required for enabling logical replication. Use cases for logical replication include multi-tenant SaaS data isolation, regional data distribution for ecommerce, PCI DSS compliance in financial services, development and testing environments, and retail inventory management. Prerequisites for implementing logical replication include using PostgreSQL 15 or later, ensuring network connectivity, having a user with replication privileges, enabling logical replication on the source instance, and monitoring WAL retention. Logical replication has limitations, such as the need for a replica identity for UPDATE and DELETE operations, the non-replication of DDL changes and sequences, and potential performance overhead during initial synchronization and ongoing replication. After testing, it is advisable to clean up by removing replication resources to prevent unnecessary costs.

Winsage

March 6, 2026

Windows Server 2025 Native NVMe: Storage Stack Overhaul and Benchmark Results

On December 15, 2025, Microsoft announced native NVMe support in Windows Server 2025, marking a significant evolution in data management and access. The new architecture replaces Disk.sys with NVMeDisk.sys, allowing direct communication from the filesystem to hardware via StorMQ, eliminating latency and enhancing performance. Testing revealed increased read speeds, particularly in random 4K and 64K benchmarks, with significant reductions in average read latency and lower CPU usage during sequential operations. Write operations showed modest improvements. A registry modification is required to enable this feature, and caution is advised due to potential complications with NVMe drives when deduplication is enabled.

Tech Optimizer

March 4, 2026

Troubleshoot RDS PostgreSQL High CPU Utilization

Vetrivel presents a guide on troubleshooting high CPU utilization in Amazon RDS and Amazon Aurora PostgreSQL-Compatible databases, focusing on three primary techniques to identify CPU spikes: 1. **Amazon CloudWatch**: Provides real-time monitoring and operational data to visualize CPU utilization trends and identify anomalies. 2. **Enhanced Monitoring**: Offers deeper insights into performance metrics for a more granular analysis of CPU usage. 3. **Database Engine Insights**: Allows diagnosis of performance issues directly through the database engine for better workload management. The video is segmented into chapters for easy navigation, covering the methods in detail.