@olivierlambert There are no performance options available in the Ubuntu VM (running 20.04). Am I missing something to check/change for cpu performance?
Latest posts made by wawa
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RE: VM Running Poorly with MPI
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VM Running Poorly with MPI
I have a Ubuntu virtual machine that is used to do some scientific computing with MPI. The VM has 64 vCPU and 200GB of memory. When compared to running the same code on a physical workstation with half the CPU cores and half the memory, the jobs run 10x slower on the VM vs the workstation. The VM is running XenTools and is recognized in XOA.
Below is the lscpu output for both:
Workstation:
Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 46 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 36 On-line CPU(s) list: 0-35 Vendor ID: GenuineIntel Model name: Intel(R) Xeon(R) W-2195 CPU @ 2.30GHz CPU family: 6 Model: 85 Thread(s) per core: 2 Core(s) per socket: 18 Socket(s): 1 Stepping: 4 CPU max MHz: 4300.0000 CPU min MHz: 1000.0000 BogoMIPS: 4599.93 Virtualization features: Virtualization: VT-x Caches (sum of all): L1d: 576 KiB (18 instances) L1i: 576 KiB (18 instances) L2: 18 MiB (18 instances) L3: 24.8 MiB (1 instance) NUMA: NUMA node(s): 1 NUMA node0 CPU(s): 0-35
Ubuntu XCP-ng VM:
Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 46 bits physical, 48 bits virtual CPU(s): 64 On-line CPU(s) list: 0-63 Thread(s) per core: 1 Core(s) per socket: 64 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 85 Model name: Intel(R) Xeon(R) Gold 6242 CPU @ 2.80GHz Stepping: 7 CPU MHz: 2793.534 BogoMIPS: 5587.06 Hypervisor vendor: Xen Virtualization type: full L1d cache: 2 MiB L1i cache: 2 MiB L2 cache: 64 MiB L3 cache: 1.4 GiB NUMA node0 CPU(s): 0-63
What could be the cause of this? And what's the resolution?
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RE: error -104
@tjkreidl I do have that option enabled. This is also passing the entire GPU through to a VM, and using an AMD GPU.
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RE: Netdata package is now available in XCP-ng
@stormi Does XCP-ng support the v1.37.1 of netdata now?
yum install netdata-ui
installs v1.19.0, which doesn't look compatible with netdata cloud anymore. When attempting to add the node to netdata cloud, it fails with the errorUnable to find usable claiming script. Reinstalling Netdata may resolve this.
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RE: Unable to import disks, VMs, and create recipes
@danp There aren't any logs at all in the CLI. In fact /var/log/syslog doesn't even exist.
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RE: Unable to import disks, VMs, and create recipes
@danp The xcp-ng server is fully patched. I'm using local storage. Logs show no errors.
It looks like on import, I can only uploadVHD files. VMDK files are the ones that don't work. When uploading VMDKs, the spinning wheel icon goes on forever without any visible progress.
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RE: Unable to import disks, VMs, and create recipes
@danp Importing Disks and VMs doesn't work on either latest or stable release channels.
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RE: Unable to import disks, VMs, and create recipes
@danp I've been running the latest release channel since I brought XOA online.
Hypervisor is xcp-ng version 8.2. Both the xcp-ng and XOA install are very new. I used the quick deploy to bring XOA up. Everything has been left to the default settings.
I'm very new to xen so please forgive my lack of knowledge and missing information.
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RE: Unable to import disks, VMs, and create recipes
@danp Correct, I'm using XOA. I've checked the troubleshooting guide and all seems well. No logs saying anything is wrong and no error messages.
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Unable to import disks, VMs, and create recipes
When trying to import disks, VMs, and create recipes in the XO web interface, nothing happens. The spinning wheel graphic just spins, while nothing is created or imported. This is a new install of xo-server 5.85.1 and xo-web 5.90.0