private void WatchCPUAndMemory()
        {
            var running = true;

            // Stop watching CPU and memory when the application stops or this control is removed
            Application.ApplicationStopped += () => { running = false; };
            this.Removed += () => { running = false; };

            while (running)
            {
                // the disposable lock ensures that the app only repaints one time when the lock is disposed.
                // without this, the app can repaint twice, once for the new point we add, and once for the
                // point we remove.  That might not be too bad, but this pattern works well if you're making
                // many changes in the background and don't want to repaint for each change.  Note that this
                // doesn't throttle the OnPaint() method of controls, it only throttles the underlying bitmap
                // from actually rendering itself on the console.
                using (Application.GetDisposableLock())
                {
                    var now = DateTime.Now;

                    var cpuUsed = PerformanceInfo.GetCPUPercentage();
                    var memUsed = Math.Round(100 - (100.0 * PerformanceInfo.GetPhysicalAvailableMemoryInMiB() / PerformanceInfo.GetTotalMemoryInMiB()), 1);

                    // slide the window so it always shows the last minute
                    ViewModel.XMaximumOverride = now.Ticks;
                    ViewModel.XMinimumOverride = now.Ticks - TimeSpan.FromMinutes(1).Ticks;

                    // add the latest value to the series
                    ViewModel.DataSeriesCollection[0].DataPoints.Add(new DataPoint()
                    {
                        X = now.Ticks, Y = cpuUsed
                    });
                    ViewModel.DataSeriesCollection[1].DataPoints.Add(new DataPoint()
                    {
                        X = now.Ticks, Y = memUsed
                    });

                    // Remove the oldest data point if we have a minute worth of data on the chart
                    if (ViewModel.DataSeriesCollection[0].DataPoints.Count > 60)
                    {
                        ViewModel.DataSeriesCollection[0].DataPoints.RemoveAt(0);
                        ViewModel.DataSeriesCollection[1].DataPoints.RemoveAt(0);
                    }
                }

                Thread.Sleep(1000);
            }
        }
Exemple #2
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        private void WatchCPUAndMemory()
        {
            var running = true;

            // Stop watching CPU and memory when the application stops or this control is removed
            Application.Stopped.SubscribeForLifetime(() => { running = false; }, Application);
            this.RemovedFromVisualTree.SubscribeForLifetime(() => { running = false; }, this);

            while (running)
            {
                var now = DateTime.Now;

                var cpuUsed = PerformanceInfo.GetCPUPercentage();
                var memUsed = Math.Round(100 - (100.0 * PerformanceInfo.GetPhysicalAvailableMemoryInMiB() / PerformanceInfo.GetTotalMemoryInMiB()), 1);

                // slide the window so it always shows the last minute
                ViewModel.XMaximumOverride = now.Ticks;
                ViewModel.XMinimumOverride = now.Ticks - TimeSpan.FromMinutes(1).Ticks;

                // add the latest value to the series
                ViewModel.DataSeriesCollection[0].DataPoints.Add(new DataPoint()
                {
                    X = now.Ticks, Y = cpuUsed
                });
                ViewModel.DataSeriesCollection[1].DataPoints.Add(new DataPoint()
                {
                    X = now.Ticks, Y = memUsed
                });

                // Remove the oldest data point if we have a minute worth of data on the chart
                if (ViewModel.DataSeriesCollection[0].DataPoints.Count > 60)
                {
                    ViewModel.DataSeriesCollection[0].DataPoints.RemoveAt(0);
                    ViewModel.DataSeriesCollection[1].DataPoints.RemoveAt(0);
                }
                Thread.Sleep(1000);
            }
        }