Hi, I'm currently working on some properties of Bloom filters and this is the first time I use Cassandre, so I'm sorry if my question seems dumb. Basically, I try to see the impact of the false positive rate of Bloom filter on performance.
My test case is: 1. I create a table with: create table bloom.test_fp (t text primary key, d text) with bloom_filter_fp_chance = <fp_rate> 2. I fill this table with 100000 rows using random data 3. I force the creation of SSTable by flushing Memtable with nodetool flush 4. I mesure the time required to perform 1000000 basic queries like select * from bloom.test_fp where t = <random_data> Surprisingly, there is not much difference depending on the false positive rate selected. I suspect some caches interfere. Is there a way for me to see the impact on performance without using large dataset? Thanks.
