The toolbar provides quick access to commonly used commands, and is customizable using the View > Toolbars > Customize command. By default, Performance Monitor displays three toolbars:
File, which provides quick access to these File menu commands:
Add Remote Host
Add JMX Connection
Add VM Coredump
Add Application Snapshot
Snapshot, which provides quick access to these File menu commands:
GlassFish, which provides two special commands:
Show All Java VMs, which controls whether only GlassFish VMs or all VMs on the local system are displayed under the Local node in the Applications window.
Show System VMs, which controls whether VMs for system applications are displayed in the Applications window.
Performance Monitor provides a fourth default toolbar, Memory, which displays memory usage by Performance Monitor.