DiagnosticDataBufferConfiguration.BufferQuotaInMB Property

The BufferQuotaInMB property sets the amount of local storage to allocate for a specified data buffer. You can specify the value of this property when configuring any of the diagnostic sources for a diagnostic monitor.

By default, the BufferQuotaInMB property is set to 0 for each data buffer. Diagnostic data will be written to each data buffer until the OverallQuotaInMB limit is reached unless you set a value for this property.

If you set this property and the quota is reached, the oldest data is deleted as new data is added. This deletion policy also applies if you have configured a transfer interval for the buffer. After the transfer has occurred, the data remains in local storage and will be deleted per the above policy.

Example

The following code snippet configures a performance counter log buffer to 2GB.

// Get the default initial configuration for DiagnosticMonitor.
DiagnosticMonitorConfiguration diagnosticConfiguration = DiagnosticMonitor.GetDefaultInitialConfiguration();

// Use 30 seconds for the performance counter sample rate.
TimeSpan perfSampleRate = TimeSpan.FromSeconds(30.0);

// Add a performance counter for processor time.
diagnosticConfiguration.PerformanceCounters.DataSources.Add(new PerformanceCounterConfiguration()
{
    CounterSpecifier = @"\Processor(_Total)\% Processor Time",
    SampleRate = perfSampleRate
});

// Set the performance counter buffer to 2GB.
diagnosticConfiguration.PerformanceCounters.BufferQuotaInMB = 2048;

Development Platforms

Target Platforms