View and analyze data in API Summary tables

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CodeXL User Guide

Help > Using CodeXL > Frame Analysis > Viewing Capture Data > View and analyze data in API Summary tables

The bottom pane of the trace view contain hotspot Summary tables. The table are summarizing the API call, and display each of the API types significant times. These tables can be used for quick identification of performance bottlenecks in the analyzed frame.

The table below specified each of the API table columns.

CPU \ GPU properties:

Name	Description
Call	The API call name
Max Time	The maximum duration for this call type. Clicking on the link in this column will select the specific call in the API table, and the timeline.
Min Time	The minimum duration for this call type. Clicking on the link in this column will select the specific call in the API table, and the timeline.
Average Time	The average duration for this API type.
Cumulative Time	The cumulative duration for all calls with this API type.
% of total Time	The percentage of all this API type calls, from the frame duration.
# of Calls	The calls count for this API type

CodeXL 2.1 supports both DX12 and Vulkan API. The hotspot summary table shows DX12 Command list \ Vulkan command buffer properties:

Name	Description
Command List\Buffer	The command list \ buffer name
Execution Time	The duration for this command.
Start Time	The start time of this command list \ buffer. Clicking on the link in this column will select the specific item in the timeline.
End Time	The end time of this command list \ buffer. Clicking on the link in this column will select the specific item in the timeline.
# of commands	The number of commands in this command list \ buffer.
GPU Queue	The GPU queue associated with this command list \ buffer.
Handle	The address of this command list \ buffer.

· Use timeline selection scope: when checked, the summary tables will reflect the selected timeline frame (which is painted within the red boundaries above). When un-checked, the summary tables will display the whole frame time range.

Selection of a line in the API summary table, will fill the top 20 calls, sorted by the time.

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