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Task Manager Performance Monitoring The Performance tab provides more information about the CPU, memory, disk, network, and graphics processing unit (GPU) subsystems, while the App History tab shows usage information for Windows Store apps. Performance tab in Task Manager showing CPU utilization. (Screenshot courtesy of Microsoft.) CPU and GPU Monitoring The CPU page shows the number of cores and logical processors (HyperThreading), whether the system is multisocket, and whether virtualization is enabled. The statistics show overall utilization, system uptime, and a count of the number of processes, threads, and handles. Higher numbers indicate more activity. Each process can run operations in multiple threads and can open handles to files, registry keys, network pipes, and so on. High peak values for utilization are nothing to worry about, but sustained periods of high utilization means that you should consider adding more resources to the system (or run fewer processes!). Memory Monitoring The Memory page reports which slots have modules installed and the speed. The usage statistics are broken down as follows: In use refers to system (RAM) usage only. Committed reports the amount of memory requested and the total of system plus paged memory available. Paged memory refers to data that is written to a disk pagefile. Cached refers to fetching frequently used files into memory pre-emptively to speed up access. Paged pool and non-paged pool refer to OS kernel and driver usage of memory. Paged usage is processes that can be moved to the pagefile, while non-paged is processes that cannot be paged. High physical memory utilization up to the amount of system RAM isn’t necessarily a sign of poor performance as it’s good to make full use of the resource. High pagefile utilization is more problematic. Disk Monitoring The Disk pages report the type and capacity plus statistics for active time, response time, and read/write speeds. Note that utilization is measured across all disk devices. For example, 50% utilization could mean one disk working at 100% and the other seeing no activity. High disk utilization and slow response times are a common cause of poor overall system performance issues. This could be a result of slow HDD technology, excessive paging activity, file/cache corruption, or a faulty device with bad sectors/blocks. Network Monitoring The Ethernet or Wi-Fi tab reports send and receive throughput for the active network adapter plus the IP address and hardware (MAC) interface address. If a wireless adapter is active, the SSID, connection type (802.11 standard), and signal strength are also shown.