how does it fare against murmurhash?

edit: I did the work myself as I should have in the first place, although I'm tired.

  % cargo bench --bench throughput
   Compiling gxhash v3.1.1 (/Users/daniel/Developer/gxhash)
   Compiling fastmurmur3 v0.2.0
    Finished `bench` profile [optimized] target(s) in 1.03s
     Running benches/throughput/main.rs (target/release/ deps/throughput-c9580307c88ca541)
  gxhash
    | 4 > 3980.55
    | 8 > 7961.11
    | 16 > 15922.22
    | 32 > 17986.93
    | 64 > 25083.88
    | 128 > 24548.44
    | 256 > 32485.82
    | 512 > 40386.43
    | 1024 > 45980.96
    | 2048 > 49396.93
    | 4096 > 51314.47
    | 8192 > 52324.80
    | 16384 > 51536.52
    | 32768 > 52342.91
 
  murmur3
    | 4 > 547.33 
    | 8 > 910.5 1
    | 16 > 1752.21
    | 32 > 2676.02
    | 64 > 3552.02
    | 128 > 4045.35
    | 256 > 3975.75
    | 512 > 3748.31
    | 1024 > 3560.22
    | 2048 > 3439.41
    | 4096 > 3411.45
    | 8192 > 3389.27
    | 16384 > 3376.18
    | 32768 > 3379.46