benchmark:

time [open]cvs -d vanadium:/home/tobiasu/cvs co pcc && rm -rf pcc

gcvs:
0m6.11s real     0m0.09s user     0m0.07s system
0m6.66s real     0m0.11s user     0m0.03s system
0m6.27s real     0m0.11s user     0m0.07s system
0m5.72s real     0m0.10s user     0m0.06s system
0m6.52s real     0m0.13s user     0m0.06s syste

ocvs-orig:
0m27.81s real     0m20.49s user     0m0.04s system
0m23.69s real     0m16.36s user     0m0.07s system
0m18.70s real     0m12.92s user     0m0.03s system
0m31.58s real     0m23.27s user     0m0.07s system
0m9.06s real     0m5.13s user     0m0.07s system (???)
0m6.54s real     0m3.29s user     0m0.03s system
0m22.88s real     0m15.99s user     0m0.02s system 

ocvs-patched:
0m5.16s real     0m0.06s user     0m0.03s system
0m5.27s real     0m0.03s user     0m0.03s system
0m5.45s real     0m0.03s user     0m0.03s system
0m5.18s real     0m0.03s user     0m0.04s system
0m5.21s real     0m0.03s user     0m0.03s system