super quick, super dumb comparison to a variant on bob jenkins 64-bit mix/hash: https://gist.github.com/robmccoll/38f03971df66ca15e030

$./bin/googlehash 512 1000000 google hash 0.0765907 255374889 2.18324e+10 bob jenkins hash 0.0158996 255484409 2.18324e+10 google is 0.207592x faster bob is 4.81714x faster

$./bin/googlehash 29 1000000 google hash 0.0478618 14000129 6.99994e+07 bob jenkins hash 0.0158052 13999989 6.99994e+07 google is 0.330225x faster bob is 3.02824x faster

./bin/googlehash 65536 1000000 google hash 0.117784 32781492370 3.57002e+14 bob jenkins hash 0.0162152 32744680953 3.57004e+14 google is 0.137668x faster bob is 7.26383x faster

print out is time(s), sum, variance (could use a suggestion on better test for uniformity - only other idea was look at a histogram, anyone have suggestions?).

edit: it is likely that this is a poor comparison :-)