Avail Track = Number of routing tracks in the design for each layer.
Track Blocked = Number of routing tracks blocked by a large blockage. A large blockage is a blockage that is greater than 2x2 Gcells. Small objects, such as pins or wires on a track, do not count here. The reason is that even if a pin is on a track, the track is still usable by the net to the pin.
Total Gcell = Total number of Gcells in the design for each layer.
%Gcell Blocked = Percentage of Gcells in which all the routing tracks inside the Gcell are blocked by a large or small blockage. When all the tracks are blocked, a wire cannot pass through that Gcell for the specific layer.
该表中每一项的意义:
Max overcon = The highest difference between the needed number of routing tracks for a Gcell and the number of available tracks.
Total overcon = Percentage of Gcells whose needed number of tracks exceeds the number of tracks available.
Worst layer Gcell overcon rate = Percentage for the layer with the highest percentage of overcongested Gcells.
The worst congested Gcell overcon = the Gcell with the highest difference between the number of tracks needed and the number of tracks available. In the above example, the worst congested Gcell requires six more routing tracks than it has available.