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Posted to commits@cloudstack.apache.org by GitBox <gi...@apache.org> on 2020/06/30 02:18:37 UTC
[GitHub] [cloudstack] GabrielBrascher commented on a change in pull request #4178: add kvm vcpu socket and threads config
GabrielBrascher commented on a change in pull request #4178:
URL: https://github.com/apache/cloudstack/pull/4178#discussion_r447212031
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File path: plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/resource/LibvirtComputingResource.java
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@@ -2297,12 +2297,32 @@ public LibvirtVMDef createVMFromSpec(final VirtualMachineTO vmTO) {
cmd.setFeatures(_cpuFeatures);
}
// multi cores per socket, for larger core configs
- if (vcpus % 6 == 0) {
- final int sockets = vcpus / 6;
- cmd.setTopology(6, sockets);
- } else if (vcpus % 4 == 0) {
- final int sockets = vcpus / 4;
- cmd.setTopology(4, sockets);
+ String coresPerSocket = null;
+ Boolean coresthreads = null;
+ if (vmTO.getDetails() != null) {
+ coresPerSocket = vmTO.getDetails().get(VmDetailConstants.CPU_CORE_PER_SOCKET);
+ coresthreads = Boolean.valueOf(vmTO.getDetails().get(VmDetailConstants.CPU_HYPERTHREADING));
+
+ s_logger.debug("user custom set coresPerSocket:" + coresPerSocket + ", coresThreads:" + coresthreads + " , vmTO:" + vmTO.getUuid());
+ }
+ if (coresPerSocket != null) {
+ final int numCoresPerSocket = NumbersUtil.parseInt(coresPerSocket, 1);
+ if (vcpus % numCoresPerSocket == 0) {
+ final int sockets = vcpus / numCoresPerSocket;
+ if(coresthreads && numCoresPerSocket % 2 == 0) {
+ cmd.setTopology(numCoresPerSocket /2, sockets,2);
+ } else {
+ cmd.setTopology(numCoresPerSocket, sockets);
+ }
+ }
+ } else {
+ if (vcpus % 6 == 0) {
+ final int sockets = vcpus / 6;
+ cmd.setTopology(6, sockets);
+ } else if (vcpus % 4 == 0) {
+ final int sockets = vcpus / 4;
+ cmd.setTopology(4, sockets);
+ }
Review comment:
What do you think of extracting lines 2300 - 2325 into a method? That would allow adding Javadoc and UNIT test.
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