virtualbox largepages
Description ¶. Guest: Windows 2008 R2 x64. Runs fine without large pages enabled, Guru meditation when booting guest after enabling large pages. ,If nested paging is enabled, the Oracle VM VirtualBox hypervisor can also use large pages to reduce TLB usage and overhead. This can yield a performance improvement of up to 5%. To enable this feature for a VM, you use the VBoxManage modifyvm --largepages,--largepages on|off : If hardware virtualization and nested paging are enabled ... This causes the hypervisor to use large pages to reduce TLB use and overhead. ,00:00:51.020 PGMR3PhysAllocateLargePage: allocating large pages takes too long (last attempt 3960 ... VBoxManage modifyvm <vmname> --largepages off ... ,The behaviour I see pretty well fits to the following problem discussed for the Linux-Kernel: Dueling memory-management performance regressions. , So currently in my opinion it seems unclear under which circumstances largepages is not only suggested, but required by VirtualBox to operate ..., Current tests show that with 48 GB of RAM in the VM and "largepages" enabled, the problem doesn't seem to occur as well. That is interesting ...
| 相關軟體 VMware Workstation Pro 資訊 | |
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 virtualbox largepages 相關參考資料
#7300 (Guru meditation with large pages ... - VirtualBox
Description ¶. Guest: Windows 2008 R2 x64. Runs fine without large pages enabled, Guru meditation when booting guest after enabling large pages. https://www.virtualbox.org Chapter 10. Technical Background - VirtualBox
If nested paging is enabled, the Oracle VM VirtualBox hypervisor can also use large pages to reduce TLB usage and overhead. This can yield a performance improvement of up to 5%. To enable this feature... https://www.virtualbox.org Chapter 8. VBoxManage - VirtualBox
--largepages on|off : If hardware virtualization and nested paging are enabled ... This causes the hypervisor to use large pages to reduce TLB use and overhead. https://www.virtualbox.org Large page allocation times out - causes guest hang - VirtualBox
00:00:51.020 PGMR3PhysAllocateLargePage: allocating large pages takes too long (last attempt 3960 ... VBoxManage modifyvm <vmname> --largepages off ... https://www.virtualbox.org Maximum RAM size for a VM with "largepages" off in VirtualBox ...
The behaviour I see pretty well fits to the following problem discussed for the Linux-Kernel: Dueling memory-management performance regressions. https://superuser.com Maximum RAM size for a VM with "largepages" off in VirtualBox?
So currently in my opinion it seems unclear under which circumstances largepages is not only suggested, but required by VirtualBox to operate ... https://superuser.com [vbox-dev] When is "largepages" necessary and what does it do ...
Current tests show that with 48 GB of RAM in the VM and "largepages" enabled, the problem doesn't seem to occur as well. That is interesting ... https://www.virtualbox.org |