Changeset 99797 in vbox for trunk/doc/manual/en_US/dita/topics/guestadd-pagefusion.dita
- Timestamp:
- May 15, 2023 5:27:56 PM (21 months ago)
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trunk/doc/manual/en_US/dita/topics/guestadd-pagefusion.dita
r99497 r99797 13 13 In a server environment running several similar VMs on the same 14 14 host, lots of memory pages are identical. For example, if the 15 VMs are using identical operating systems. Oracle VM VirtualBox's Page15 VMs are using identical operating systems. <ph conkeyref="vbox-conkeyref-phrases/product-name"/>'s Page 16 16 Fusion technology can efficiently identify these identical 17 17 memory pages and share them between multiple VMs. … … 19 19 <note> 20 20 <p> 21 Oracle VM VirtualBoxsupports Page Fusion only on 64-bit hosts, and21 <ph conkeyref="vbox-conkeyref-phrases/product-name"/> supports Page Fusion only on 64-bit hosts, and 22 22 it is not supported on macOS hosts. Page Fusion currently 23 23 works only with Windows 2000 and later guests. … … 63 63 </p> 64 64 <p> 65 Page Fusion in Oracle VM VirtualBoxuses logic in the66 Oracle VM VirtualBoxGuest Additions to quickly identify memory65 Page Fusion in <ph conkeyref="vbox-conkeyref-phrases/product-name"/> uses logic in the 66 <ph conkeyref="vbox-conkeyref-phrases/product-name"/> Guest Additions to quickly identify memory 67 67 cells that are most likely identical across VMs. It can 68 68 therefore achieve most of the possible savings of page … … 86 86 </p> 87 87 <pre xml:space="preserve">VBoxManage modifyvm "VM name" --page-fusion on</pre> 88 <p> 89 You can observe Page Fusion operation using some metrics. 90 <codeph>RAM/VMM/Shared</codeph> shows the total amount of 91 fused pages, whereas the per-VM metric 92 <codeph>Guest/RAM/Usage/Shared</codeph> will return the amount 93 of fused memory for a given VM. See 94 <xref href="vboxmanage-metrics.dita"/> for information on how to 95 query metrics. 96 </p> 88 <p> You can observe Page Fusion operation using some metrics. <codeph>RAM/VMM/Shared</codeph> 89 shows the total amount of fused pages, whereas the per-VM metric 90 <codeph>Guest/RAM/Usage/Shared</codeph> will return the amount of fused memory for a given 91 VM. See <xref href="vboxmanage-metrics.dita"/> for information on how to query metrics. </p> 97 92 <note> 98 93 <p>
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