Pebble Benchmarks
          Last updated
         
        
        
          
            Benchmarks are run nightly using 
pebble
            bench ycsb on AWS m6id.4xlarge machines equipped with
            local SSD storage. The AWS instances show remarkably high
            instance to instance performance variability. In order to
            smooth out that variability the benchmarks are run multiple
            times each (using different instances) and outliers are
            excluded.
          
 
          
         
        
        L0-sublevels and
        flush-splits enabled
        Increased
        LogWriter free blocks 4->16
        Began tracking
        ycsb/E read-amp
        Level metadata
        switched to use a B-Tree
        Enabled
        read-triggered compactions
        Readahead
        and preallocation bug fixed
        Removed excess
        read samples for read-triggered compactions
        Switched to Ubuntu
        20.04.2 LTS AMI
        Read compaction fixes
        Bumped benchmark
          runtime to 90 minutes
        Data quality issue introduced (YCSB A only)
        Data quality issue fixed (YCSB A only)
        Began zeroing reused
            iterator structs (#1822)
        Grandparent boundary
            compaction splitting
        Infrastructure
            change (#2578)
        ycsb/F sampling bug
        Switched to m6id.4xlarge
            (from 5d.4xlarge)