for details). VirtualBox is a so-called “hosted” hypervisor (sometimes referred to as a “type 2” hypervi- sor). Whereas a “bare-metal” or “type 1” hypervisor would run directly on the hardware, VirtualBox to the virtual machine. You may be familiar with this kind of memory overcommitment from other hypervisor prod- ucts, which call this feature “page sharing” or “same page merging”. However, Page Fusion additional performance improvement of up to 5% can be obtained by enabling this setting. This causes the hypervisor to use large pages to reduce TLB use and overhead. • --vtxvpid on|off: If hardware virtualization

for details). VirtualBox is a so-called “hosted” hypervisor (sometimes referred to as a “type 2” hypervi- sor). Whereas a “bare-metal” or “type 1” hypervisor would run directly on the hardware, VirtualBox to the virtual machine. You may be familiar with this kind of memory overcommitment from other hypervisor prod- ucts, which call this feature “page sharing” or “same page merging”. However, Page Fusion additional performance improvement of up to 5% can be obtained by enabling this setting. This causes the hypervisor to use large pages to reduce TLB use and overhead. • --vtxvpid on|off: If hardware virtualization

for details). VirtualBox is a so-called “hosted” hypervisor (sometimes referred to as a “type 2” hypervi- sor). Whereas a “bare-metal” or “type 1” hypervisor would run directly on the hardware, VirtualBox to the virtual machine. You may be familiar with this kind of memory overcommitment from other hypervisor prod- ucts, which call this feature “page sharing” or “same page merging”. However, Page Fusion additional performance improvement of up to 5% can be obtained by enabling this setting. This causes the hypervisor to use large pages to reduce TLB use and overhead. 134 8 VBoxManage • --vtxvpid on|off: If hardware

for details). VirtualBox is a so-called “hosted” hypervisor (sometimes referred to as a “type 2” hypervi- sor). Whereas a “bare-metal” or “type 1” hypervisor would run directly on the hardware, VirtualBox to the virtual machine. You may be familiar with this kind of memory overcommitment from other hypervisor prod- ucts, which call this feature “page sharing” or “same page merging”. However, Page Fusion additional performance improvement of up to 5% can be obtained by enabling this setting. This causes the hypervisor to use large pages to reduce TLB use and overhead. • --vtxvpid on|off: If hardware virtualization

for details). VirtualBox is a so-called “hosted” hypervisor (sometimes referred to as a “type 2” hypervi- sor). Whereas a “bare-metal” or “type 1” hypervisor would run directly on the hardware, VirtualBox to the virtual machine. You may be familiar with this kind of memory overcommitment from other hypervisor prod- ucts, which call this feature “page sharing” or “same page merging”. However, Page Fusion additional performance improvement of up to 5% can be obtained by enabling this setting. This causes the hypervisor to use large pages to reduce TLB use and overhead. • --vtxvpid on|off: If hardware virtualization

in kernel mode, the blue area represents userspace code. At the bottom of the stack resides the hypervisor – the core of the virtualization engine, con- trolling execution of the virtual machines and making do not conflict with each other or whatever the host computer is doing otherwise. On top of the hypervisor, additional internal modules provide extra functionality. For example, the RDP server, which can of memory allocated by the hypervisor. memFreeTotal Total amount of free memory available in the hypervisor. memBalloonTotal Total amount of memory ballooned by the hypervisor. memSharedTotal Total amount

in kernel mode, the blue area represents userspace code. At the bottom of the stack resides the hypervisor – the core of the virtualization engine, con- trolling execution of the virtual machines and making do not conflict with each other or whatever the host computer is doing otherwise. On top of the hypervisor, additional internal modules provide extra functionality. For example, the RDP server, which can allocated by the hypervisor. 99 5 Classes (interfaces) memFreeTotal Total amount of free memory available in the hypervisor. memBalloonTotal Total amount of memory ballooned by the hypervisor. memSharedTotal

in kernel mode, the blue area represents userspace code. At the bottom of the stack resides the hypervisor – the core of the virtualization engine, con- trolling execution of the virtual machines and making do not conflict with each other or whatever the host computer is doing otherwise. On top of the hypervisor, additional internal modules provide extra functionality. For example, the RDP server, which can of memory allocated by the hypervisor. memFreeTotal Total amount of free memory available in the hypervisor. memBalloonTotal Total amount of memory ballooned by the hypervisor. memSharedTotal Total amount

in kernel mode, the blue area represents userspace code. At the bottom of the stack resides the hypervisor – the core of the virtualization engine, con- trolling execution of the virtual machines and making do not conflict with each other or whatever the host computer is doing otherwise. On top of the hypervisor, additional internal modules provide extra functionality. For example, the RDP server, which can of memory allocated by the hypervisor. memFreeTotal Total amount of free memory available in the hypervisor. memBalloonTotal Total amount of memory ballooned by the hypervisor. memSharedTotal Total amount

in kernel mode, the blue area represents userspace code. At the bottom of the stack resides the hypervisor – the core of the virtualization engine, con- trolling execution of the virtual machines and making do not conflict with each other or whatever the host computer is doing otherwise. On top of the hypervisor, additional internal modules provide extra functionality. For example, the RDP server, which can of memory allocated by the hypervisor. memFreeTotal Total amount of free memory available in the hypervisor. memBalloonTotal Total amount of memory ballooned by the hypervisor. memSharedTotal Total amount