Viewing Traces in the Cloud Platform Console

The trace overview in Stackdriver Trace displays a snapshot of last-day latency data for your application, and allows you to drill down on individual traces for more details.

Note: The data in this view may not be from the previous calendar day. It shows data for the last day on which latency data was collected, within the last seven days.

The trace overview displays:

  • A list of performance insights that can help you understand how to reduce your application latency.
  • Lists of the most frequent application requests and RPC calls with their average latencies.
  • An analysis report that displays overall latency for requests that make RPC calls, and compares requests in the last day and the previous day.
  • A list of the most recent traces with their latency and the time they were made.

View the trace overview

Open the trace overview for your project. This is the default view in Stackdriver Trace. Click the Overview tab to return to this view at any time.

Stackdriver Trace overview page

Note: If you enabled Stackdriver Trace within the last day, no latency data appears in the trace overview. Stackdriver Trace prompts you to create a custom analysis report instead.

View insights

The Insights panel in the trace overview displays a list of performance insights for your application, if applicable.

Stackdriver Trace insights

The reported insights can help you reduce latency by addressing common problems in your application. For example, an insight may report that your application is making too many consecutive calls to the Datastore put() operation and that you may reduce latency if you batch the operations instead.

Click an insight to view detailed information about it. The Insights section of the Trace Details page gives a description of the potential problem and recommended steps to take.

Stackdriver Trace insight details

View frequent requests

The Most Frequent URIs panel in the trace overview displays a list of URIs for the most frequent requests to your application during the last day, along with their average latency.

Stackdriver Trace frequent requests

Click any URI to view a trace list that allows you to browse latency data for matching requests. By default, this list only shows those requests that occurred within the last day. You can adjust the date range to see additional requests.

Stackdriver Trace trace list

From the trace list, you can view detailed information about any individual request.

View frequent RPC calls

The Most Frequent RPCs panel in the trace overview displays a list of the most frequent RPC calls made by your application during the last day, along with their average latency.

Stackdriver Trace frequent RPCs

Click an RPC name to browse latency data for requests where the matching RPC call was made.

View the most recent traces

The Most recent traces panel in the trace overview displays the most recent traces for a project.

Stackdriver Trace most recent traces

Click a trace to view trace details.

View the analysis report

The analysis report in the trace overview shows an overall view of the latency for requests to your application in the last day, and compares it with latency data for requests from the previous day. This report is automatically generated.

Stackdriver Trace analysis report

The graph in the analysis report shows the distribution of requests in the report along a logarithmic axis of average latency times. The Latency panel below the graph view shows average latency times by percentage with links to traces for representative sample requests.

This analysis report is a simplified view of the full analysis reports that you can create in Stackdriver Trace. Click Create Analysis Report at the bottom of the panel to create a custom report that shows additional information. This includes:

  • Both the density and cumulative distribution graphs for latency data.
  • Bottlenecks, which identify RPC calls that are significant contributors to latency.

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Stackdriver Trace Documentation