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webGui: generate VM xml with cpu topology as single-threaded when host cpu is AMD

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This commit is contained in:
Eric Schultz
2016-11-22 05:08:56 -06:00
parent 2dcecd0a3e
commit 4bf167201d
1 changed files with 6 additions and 0 deletions
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6
plugins/dynamix.vm.manager/classes/libvirt.php
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@@ -327,6 +327,12 @@
// detect if the processor is hyperthreaded:
$intCPUThreadsPerCore = max(intval(shell_exec('/usr/bin/lscpu | grep \'Thread(s) per core\' | awk \'{print $4}\'')), 1);
// detect if the processor is AMD, and if so, force single threaded
$strCPUInfo = file_get_contents('/proc/cpuinfo');
if (strpos($strCPUInfo, 'AuthenticAMD') !== false) {
$intCPUThreadsPerCore = 1;
}
// even amount of cores assigned and cpu is hyperthreaded: pass that info along to the cpu section below
if ($intCPUThreadsPerCore > 1 && ($vcpus % $intCPUThreadsPerCore == 0)) {
$intCores = $vcpus / $intCPUThreadsPerCore;