5. Resource Monitor
Resource Monitor’s functionality
remains unchanged from Windows Server 2008 R2, providing real-time data
about the core components of your server: CPU, disk, network, and
memory. This allows for monitoring health and performance, identifying
utilization hogs, or making business decisions, including increasing or
decreasing resources as needed, resuming or suspending activities,
utilizing a server for additional roles, and setting up firewall rules
based on network activities (see Figure 5).
Figure 5. Windows 2012 Resource Monitor.
• Resource Monitor can be invoked in any of the following ways:
• Clicking Open Resource Monitor within the Performance tab of Task Manager
• Clicking Resource Monitor from the Tools link within the new Server Manager
• Typing ResMon at the command prompt or in the Run window
Overview Tab
The Overview tab hosts CPU, disk, network,
and memory details and graphs. Of note is that not only is the current
information shown, but maximum frequency (CPU) for the system overall
and average CPU utilization for each process is listed. This allows for
more a real-time, yet more relevant view of utilization.
Tip
To filter on a specific process or processes,
simply choose the check mark in the Image column (under the CPU
header). All Disk, network, and memory details will be limited to the
selected processes. This option carries over to the other tabs.
Although not as complete as specific
properties in Performance Manager, you can watch Resource Monitor
before making changes to investigate the high-level, yet core impact
experienced during or after the change.
Using the information in the Overview screen
to identify a potential issue, you can then proceed to the related Tab
for further analysis and troubleshooting.
CPU Tab
The CPU tab provides CPU-related information
about processes, services, associated handles, and associated module
sections. After taking a look at this tab in Figure 6, let’s review the details behind each section and the information it provides.
Figure 6. Resource Monitor: CPU tab.
