Now my scenario is running ycsb doing heavy read. I compared the results of setting hfile.block.cache.size to 0.2 with 0. I found with the factor 0 the hbase metric 'get_avg_time' is even smaller. Maybe I should turn off block cache in such scenario. I wonder if there are performance tests show the benefits of block cache? Or there are other configurations for me to pay attention to?
Btw, I give hbase 18G memory.
