clock Design vs ckSynthesis

[jason.wei]

I had use clockDesign for clock synthesis as following command.

clockDesign -specFile A.ctstch -outDir clock_report​

When I use displayClockMinMaxPaths to report the path will get bigger clock latency compare to what I got in clock_report (said 20%).
If I use "ckSynthesis" instead, the report the same as using command "displayClockMinMaxPaths "
Depend on document's information, ckSynthesis should be part of clockDesign.
And clockDesign seems to be have better performance.
Why cause this! Thanks!

displayClockMinMaxPaths -clk INST/Y -clkRouteOnly

 

[ThisIsNotSam]

Not sure, but they are most likely obsolete commands. You should be using ccopt_design.