On 13/10/19 20:56, Jerry Geis wrote:

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6 hours are too much. First of all you need to check your nvme performace (dd can help? dd if=/dev/zero of=/test bs=1M count=10000 andd see results. If you want results more benchmark oriented you could try bonnie++ as suggested by Jerry).

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Other this, have you got kvm module loaded and enabled cpu virtualization option in the BIOS?

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If yes, have you got created the VM using --accelerate?

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Have you tried another distro on VM?

I mounted the partition under C7.7 and ran the nvme test. Pretty much came back in seconds for 10G test.

dd if=/dev/zero of=test bs=1M count=10000 10000+0 records in 10000+0 records out 10485760000 bytes (10 GB) copied, 5.45451 s, 1.9 GB/s

Yes kvm_intel is loaded as a module.

I am using the "-hda /dev/nvme0n1" when I run qemu.... I'm thinking this works find for my other "img" files - but does not work for "well" for my physical NVME. What is the correct argument perhaps to use for running a physical NVME disk as a qemu guest ??

Thanks,

Jerry _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos

Hi Jerry, I never used a block device as disk devices on my vms. From virt-install (I use it) man pages from --disk section:

path A path to some storage media to use, existing or not. Existing media can be a file or block device.

Specifying a non-existent path implies attempting to create the new storage, and will require specifying a 'size' value. Even for remote hosts, virt-install will try to use libvirt storage APIs to automatically create the given path.

If the hypervisor supports it, path can also be a network URL, like http://example.com/some-disk.img . For network paths, they hypervisor will directly access the storage, nothing is downloaded locally.

So you can try like: virt-install -n NAME -r mem --vcpus=N --accelerate --os-type=X --os-variant=X --disk path=/dev/nvme0n1[pN] ...and so on.

It should run without problem.

I added [pN] because you can use also a partition other than entire nvme0n1. I don't know if any type of option would be needed for a particular type of device like nvme.

hope that helps.

Alessandro.

On Mon, Oct 14, 2019 at 08:34:42AM -0400, Jerry Geis wrote:

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so you can try like: virt-install -n NAME -r mem --vcpus=N --accelerate --os-type=X --os-variant=X --disk path=/dev/nvme0n1[pN] ...and so on.

Is there a command for virt-manager stuff that is just like qemu? Just command line - I dont want the GUI popping up and all that stuff. I dont need it creating all other files - just a simple command line ? I have not found that yet with my searching.

virt-install can be run with no GUI. You can set it up to automatically start a serial console in case you need to interact with the install. You can also use 'virsh' to edit VM configs from the command line.

On Oct 14, 2019, at 10:14 AM, Jerry Geis jerry.geis@gmail.com wrote:

Sure - I saw those - but I was looking for something just like the old qemu command line. Just boot up and run - Nothing added to a GUI interface. Nothing that I have to connect to - Just boot up show me the console screen and done. I "boot" up old C5, C6 images (and other) I recompile my code for those platforms and shut it back down. Thanks, (I know C5 is EOL - but still in use out there).

If you don’t want to start it with a serial console, no problem. If you want to just define a new host with a particular image as the root disk, use virsh.

-- Jonathan Billings billings@negate.org