Hello. I'm write a small erlang benchmark: cassandra vs simple fs storage and I have a results:
fs_storage: 10: 1732/228633/2873/1128 992/233261/2870/1026 25: 4531/35290/6084/632 1786/35292/5969/312 50: 4707/311825/13694/4644 1366/382913/14470/5823 cassandra: 10: 69014/424051/145871/28066 9553/427823/141925/29190 25: 165500/536108/339736/77173 14846/710370/341819/78694 50: 325790/1050753/667931/157962 9865/1033461/676317/160606 legends: parallel request: get set min/max/avg/mad So. Cassandra slower ~50 times. Ok I change cassandra setting: ColumnFamily from UTF8Type to BytesType MemtableObjectCountInMillions from 0.1 to 1 ConcurrentReads from 8 to 64 ConcurrentWrites from 32 to 64 And I have: fs_storage: 10: 2164/245375/2515/474 651/247790/2746/800 25: 5521/19959/5838/196 1836/20138/5943/186 50: 6369/32837/11476/944 1396/32818/11449/876 cassandra: 10: 39931/279903/48463/4812 21378/278782/51477/4526 25: 101911/407343/119135/9158 8794/410423/123768/9076 50: 209202/429959/238179/12180 7803/442580/244402/13443 Cassandra slower ~20 times. I's normal? Can I do something wrong? Maybe you have any ideas? -- wbr, Kirill
