Custom C* configs comparison

gistfile1.txt

This ruby benchmark uses the latest cassandra-driver gem and inserts 50.000 entries in the cluster using several methods.
The model is like this:
CREATE TABLE events (
      id varchar,
      timestamp timestamp,
      var1 float,
      var2 float,
      var3 varchar,
      var4 int,
      PRIMARY KEY (id, timestamp)
    )

It worths mentioning that we've tried with same id and with random ones having the same results.

XXXXX@XXXXXXXXXXX:~/cbenchmark$ CBENCH_REPLICATION_FACTOR=3 ./cbench.rb
                                             user     system      total        real
any_prepared_async                      14.420000   0.710000  15.130000 ( 14.430499)
any_prepared_sync                       26.580000   2.250000  28.830000 ( 71.302576)
any_non_prepared_sync                   21.550000   3.310000  24.860000 ( 69.254249)
any_non_prepared_async                   8.890000   0.360000   9.250000 (  8.689930)
one_prepared_async                      12.530000   0.220000  12.750000 ( 12.199848)
one_prepared_sync                       27.700000   2.540000  30.240000 ( 71.629692)
one_non_prepared_sync                   21.520000   3.200000  24.720000 ( 69.334548)
one_non_prepared_async                   8.400000   0.470000   8.870000 (  8.451268)
quorum_prepared_async                   13.170000   0.050000  13.220000 ( 12.713715)
quorum_prepared_sync                    27.210000   2.890000  30.100000 (111.314576)
quorum_non_prepared_sync                21.290000   3.560000  24.850000 (108.975929)
quorum_non_prepared_async                8.640000   0.510000   9.150000 (  8.796696)