-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi everyone, I found an article about libvirt, and one thing that I have not seen anywhere else:

IMPORTANT: If you boot a Linux VM, you might want to add “elevator=noop” to your Linux boot command line to force the disk scheduler to let the host machine handle the disk writes reorganisations (like tunnelling tcp over tcp, it is bad to have two schedulers trying to do each other’s job). For example, on GRUB2 on Debian, you have to append “elevator=noop” after GRUB_CMDLINE_LINUX in /etc/default/grub. (from http://blog.normation.com/en/2012/03/09/a-guide-to-the-everyday-use-of-libvi...)

Is this necessary? Or is this even a good idea? Is this outdated? Or does it depend on the kind of hypervisor (XEN, KVM,...)? The few qemu/KVM-machines I have tested did work fine without this, although at this point I just set them up and did a few program installations, no real 'workload'. Thanks in advance. Regards, Johannes - -- ...Unix, MS-DOS, and Windows NT (also known as the Good, the Bad, and the Ugly). (Matt Welsh) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with SeaMonkey - http://www.enigmail.net/ iEYEARECAAYFAlNK5UUACgkQzi3gQ/xETbK9jQCePXXY87HpDrufk8tKvaI+JhR9 uGQAoJjxU/B8Z8sGvQS/iPUZNsQtM/Il =sjGR -----END PGP SIGNATURE-----