mirror of https://github.com/portainer/portainer
70 lines
2.9 KiB
JavaScript
70 lines
2.9 KiB
JavaScript
angular.module('stats', [])
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.controller('StatsController', ['Settings', '$scope', 'Messages', '$timeout', 'Container', '$routeParams', function (Settings, $scope, Messages, $timeout, Container, $routeParams) {
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// TODO: Implement memory chart, force scale to 0-100 for cpu, 0 to limit for memory, fix charts on dashboard
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var labels = [];
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var data = [];
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for (var i = 0; i < 40; i ++) {
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labels.push('');
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data.push(0);
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}
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var dataset = { // CPU Usage
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fillColor: "rgba(151,187,205,0.5)",
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strokeColor: "rgba(151,187,205,1)",
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pointColor: "rgba(151,187,205,1)",
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pointStrokeColor: "#fff",
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data: data
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};
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var chart = new Chart($('#cpu-stats-chart').get(0).getContext("2d")).Line({
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labels: labels,
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datasets: [dataset]
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});
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function updateStats() {
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Container.stats({id: $routeParams.id}, function (d) {
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var arr = Object.keys(d).map(function (key) {
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return d[key];
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});
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if (arr.join('').indexOf('no such id') !== -1) {
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Messages.error('Unable to retrieve stats', 'Is this container running?');
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return;
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}
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// Update graph with latest data
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updateChart(d);
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$timeout(updateStats, 1000); // TODO: Switch to setInterval for more consistent readings
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}, function () {
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Messages.error('Unable to retrieve stats', 'Is this container running?');
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});
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}
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updateStats();
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function updateChart(data) {
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console.log('updateChart', data);
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chart.addData([$scope.calculateCPUPercent(data)], new Date(data.read).toLocaleTimeString());
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chart.removeData();
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}
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$scope.calculateCPUPercent = function (stats) {
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// Same algorithm the official client uses: https://github.com/docker/docker/blob/master/api/client/stats.go#L195-L208
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var prevCpu = stats.precpu_stats;
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var curCpu = stats.cpu_stats;
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var cpuPercent = 0.0;
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// calculate the change for the cpu usage of the container in between readings
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var cpuDelta = curCpu.cpu_usage.total_usage - prevCpu.cpu_usage.total_usage;
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// calculate the change for the entire system between readings
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var systemDelta = curCpu.system_cpu_usage - prevCpu.system_cpu_usage;
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if (systemDelta > 0.0 && cpuDelta > 0.0) {
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//console.log('size thing:', curCpu.cpu_usage.percpu_usage);
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cpuPercent = (cpuDelta / systemDelta) * curCpu.cpu_usage.percpu_usage.length * 100.0;
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}
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return Math.random() * 100;
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//return cpuPercent; TODO: Switch back to the real value
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};
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}]); |