CAD tip # 7109:

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Switch AutoCAD to TURBO mode.

Our customers are often facing a problem where AutoCAD suddenly works slower, with longer response times. This is usually caused by the contents of the current drawing (see tips) but the reason may by also in your current AutoCAD settings (its system variables).

For these situations we have developed a small LISP utility - TURBO. This tool reveals the possible internal reasons of performance problems. Its command TURBO will switch AutoCAD (2024-2007, any vertical version) to a faster mode by presetting all relevant system variables. The next TURBO command then switches AutoCAD back to its original status (your former settings).

The performance differences depend on your current settings, on the complexity of your drawing and on the PC configuration. You can expect maximum "Turbo" effects on slow PCs with poor existing settings and in emulated/virtualized environments.

The active "Turbo" mode is indicated by red commandline text and by the "[TURBO]" indicator in the status line. Return back to "normal" mode in the same session to restore the original settings (or use Turbo0 for reset). You can also add your own settings to make AutoCAD work faster.

You can download the TURBO utility from Download. See more information in the attached Readme file.

ACAD2022ACAD2012ACAD2010ACAD2008ACAD2007

* CAD

14.12.2009 38525× FAQ

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applies to: AutoCAD 2022 · AutoCAD 2012 · AutoCAD 2010 · AutoCAD 2008 · AutoCAD 2007 ·

See also:
Tip 13907:	Low performance when editing blocks in AutoCAD 2024.
Tip 12844:	How to import maps from a WMTS source into Civil or Map 3D?
Tip 10855:	Dynamic linetype scaling by mouse dragging.
Tip 10802:	Simplifying 3D drawings by replacing repeating 3D solids with blocks.
Tip 10461:	Unattended DWG plotting and PDF publishing without AutoCAD.

Selected tip: Wrong text size on labels in paper space.

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