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Add initial functions to collect VM usage data

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This commit is contained in:
SimonFair
2024-02-09 07:09:47 +00:00
parent 451075c174
commit bb6598d2f9
2 changed files with 84 additions and 2 deletions
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9
emhttp/plugins/dynamix.vm.manager/include/libvirt.php
View File

@@ -1694,8 +1694,8 @@
else {
$doms = libvirt_list_domains($this->conn);
foreach ($doms as $dom) {
$tmp = $this->domain_get_name($dom);
$ret[$tmp] = libvirt_domain_get_info($dom);
$tmp = $this->get_domain_object($dom);
$ret[$dom] = libvirt_domain_get_info($tmp);
}
}
@@ -1771,6 +1771,11 @@
return ($tmp) ? $tmp : $this->_set_last_error();
}
function domain_get_all_domain_stats() {
$tmp = libvirt_connect_get_all_domain_stats($this->conn);
return ($tmp) ? $tmp : $this->_set_last_error();
}
function domain_start($dom) {
$dom=$this->get_domain_object($dom);
if ($dom) {

77
emhttp/plugins/dynamix.vm.manager/include/libvirt_helpers.php
View File

@@ -2528,4 +2528,81 @@ function addtemplatexml($post) {
return $reply;
}
function get_vm_usage_stats($collectcpustats = true,$collectdiskstats = true,$collectnicstats = true, $collectmemstats = true) {
global $lv, $vmusagestats;
$hostcpus = $lv->host_get_node_info();
$timestamp = time();
$allstats=$lv->domain_get_all_domain_stats();
foreach ($allstats as $vm => $data) {
$state = $data["state.state"];
# CPU Metrics
$cpuTime = 0;
$cpuHostPercent = 0;
$cpuGuestPercent = 0;
$cpuTimeAbs = $data["cpu.time"];
if ($state == 1 && $collectcpustats == true) {
$guestcpus = $data["vcpu.current"];
$cpuTime = $cpuTimeAbs - $vmusagestats[$vm]["cpuTimeAbs"];
$pcentbase = ((($cpuTime) * 100.0) / ((($timestamp) - $vmusagestats[$vm]["timestamp"] ) * 1000.0 * 1000.0 * 1000.0));
$cpuHostPercent = round($pcentbase / $hostcpus['cpus'],1);
$cpuGuestPercent = round($pcentbase / $guestcpus, 1) ;
$cpuHostPercent = max(0.0, min(100.0, $cpuHostPercent));
$cpuGuestPercent = max(0.0, min(100.0, $cpuGuestPercent));
}
# Memory Metrics
if ($state == 1 && $collectmemstats) {
$currentmem = $data["balloon.current"];
$unusedmem = $data["balloon.unused"];
$meminuse = $currentmem - $unusedmem;
} else $currentmem = $meminuse = 0;
# Disk
if ($state == 1 && $collectdiskstats) {
$disknum = $data["block.count"];
$rd=$wr=$i=0;
for ($i = 0; $i < $disknum; $i++) {
if ($data["block.$i.name"] == "hda" || $data["block.$i.name"] == "hdb") continue;
$rd += $data["block.$i.rd.bytes"] ;
$wr += $data["block.$i.wr.bytes"] ;
}
$rdrate = ($rd - $vmusagestats[$vm]['rdp'])/1024;
$wrrate = ($wr - $vmusagestats[$vm]['wrp'])/1024;
} else $rdrate=$wrrate=0;
# Net
if ($state == 1 && $collectnicstats) {
$nicnum = $data["net.count"];
$rx=$tx=$i=0;
for ($i = 0; $i < $nicnum; $i++) {
$rx += $data["net.$i.rx.bytes"] ;
$tx += $data["net.$i.tx.bytes"] ;
}
$rxrate = round(($rx - $vmusagestats[$vm]['rxp'])/1024,0);
$txrate = round(($tx - $vmusagestats[$vm]['txp'])/1024,0);
} else $rxrate=$txrate=0;
$vmusagestats[$vm] = [
"cpuTime" => $cpuTime,
"cpuTimeAbs" => $cpuTimeAbs,
"cpuhost" => $cpuHostPercent,
"cpuguest" => $cpuGuestPercent,
"timestamp" => $timestamp,
"mem" => $meminuse,
"maxmem" => $currentmem,
"rxrate" => $rxrate,
"rxp" => $rx,
"txrate" => $txrate,
"txp" => $tx,
"rdp" => $rd,
"rdrate" => $rdrate,
"wrp" => $wr,
"wrrate" => $wrrate,
"state" => $state,
];
}
}
?>