Quartus® Prime Pro Edition User Guide: Design Optimization

ID 683641
Date 4/01/2024
Document Table of Contents Evaluate Routing Usage

Review routing usage reported in the Fitter Resource Usage Summary report.
Figure 29. Fitter Resource Usage Summary Report

Average interconnect usage reports the average amount of interconnect that is used, out of what is available on the device. Peak interconnect usage reports the largest amount of interconnect used in the most congested areas.

Designs with an average value below 50% typically do not have any problems with routing. Designs with an average between 50-65% may have difficulty routing. Designs with an average over 65% typically have difficulty meeting timing unless the RTL tolerates a highly utilized chip. Peak values at or above 90% are likely to have problems with timing closure; a 100% peak value indicates that all routing in an area of the device has been used, so there is a high possibility of degradation in timing performance.