You can do so even per-size via e.g. /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages As discussed the later the allocation the higher the chance to fail, so re-check the sysfs file after each change if it actually got that much memory.
The default size is only a boot time parameter. But you can specify explicit sizes in libvirt xml. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1838575 Title: passthrough devices cause >17min boot delay Status in linux package in Ubuntu: Confirmed Status in qemu package in Ubuntu: Incomplete Bug description: Adding passthrough devices to a guest introduces a boot delay of > 17 minutes. During this time libvirt reports the guest to be "paused". The delay does not seem to scale with the # of hostdevs - that is, 1 hostdev causes about a 17min delay, while 16 only bumps that up to ~18min. Removing all hostdevs avoids the delay. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1838575/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
