time v.in.ogr dsn=../../../../data/pima/tgr04019 output=ppp layer=PIP
Layer: PIP
-----------------------------------------------------
26303 primitives registered      
0 areas built      8%
0 isles built
Number of nodes     :   26303         
Number of primitives:   26303
Number of points    :   26303
Number of lines     :   0
Number of boundaries:   0
Number of centroids :   0
Number of areas     :   0
Number of isles     :   0

real    2m21.927s
user    0m11.650s
sys     0m2.640s

time v.in.ogr dsn=../../../../data/pima/tgr04019 output=ccc layer=CompleteChain
Layer: CompleteChain
-----------------------------------------------------
93236 primitives registered      
0 areas built      8%
0 isles built
Number of nodes     :   67043         
Number of primitives:   93236
Number of points    :   0
Number of lines     :   93236
Number of boundaries:   0
Number of centroids :   0
Number of areas     :   0
Number of isles     :   0

real    10m58.132s
user    1m2.470s
sys     0m12.600s

time v.in.ogr -c dsn=../../../../data/pima/tgr04019
layer=CompleteChain,PIP output=tgr type=boundary,centroid snap=-1
Layer: CompleteChain
Layer: PIP
-----------------------------------------------------
119539 primitives registered
21768 areas built
95 isles built
Number of nodes     :   93345         
Number of primitives:   119539
Number of points    :   0
Number of lines     :   0
Number of boundaries:   93236
Number of centroids :   26303
Number of areas     :   21768
Number of isles     :   95
Number of incorrect boundaries   :   58178
Number of centroids outside area :   4535
Number of duplicate centroids    :   1
Number of areas without centroid :   1

real    24m50.441s
user    1m42.810s
sys     0m24.180s