diag captureSlowFrame

1.631.001.00

Hover & click on the images for description

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Only available in Diagnostic/Profiling branch(es).

Description

Description:

Opens "capture frame" dialog if current frame exceeds set threshold in seconds. One can indicate to either capture duration of a specific profiling selection or the total duration of the frame. The selection names can be obtained by expanding the profiling tree. Clicking on a tree item will highlight the item on the graph and vice versa. The GUI also provides method of copying of the displayed data to clipboard. Some of the selections:

Render	Main Thread	Visualize	Mjob
bgD3D	total memAl	visul	Mjob

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Chrome export format:

Capturing to file also creates a .trace file, which can be imported into chrome://tracing (in chromium based webbrowsers), or https://ui.perfetto.dev/
The same format can be exported by pressing the "COPY ALL" button, in the capture frame UI, with CTRL key being held down.

this is happening automatically now, right? so just part of the description and nothing parameter related

Groups:

DiagnosticPerformance Profiling

Syntax

Syntax:

diag_captureSlowFrame [section, threshold, frameSkip]

Parameters:

section: String - case-sensitive

threshold: Number - section duration in seconds. 0 captures always IF the section you gave as section filter appears inside the given frame. "total" always appears, while "callExt" might not always appear for example

since 1.18

frameSkip: Number - number of frames to ignore before measuring

since 2.20

toFile: Boolean - if true, doesn't open UI and writes straight to file. If logging to file, it automatically also outputs a .trace file. Note: even if false it might still force to file if it doesn't have a UI, like a server or HC

since 2.20

continuousCounter: Number - captures N slow frames. 0 or 1 will only capture one frame - don't set it to negative! Can be aborted by running diag_captureFrame or another captureSlowFrame

Return Value:

Nothing

Examples

Example 1:

diag_captureSlowFrame ["total", 0.003];

Example 2:

diag_captureSlowFrame ["memAl", 0.0001, 30];

Example 3:

diag_captureSlowFrame ["total", 0, 0, false, 3];

Will open the capture ui 3 times

Additional Information

See also:

Performance Profiling diag_captureFrame diag_logSlowFrame

Notes

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