Tweaking limits on level0 files (#10)

Co-authored-by: Jason Major <argo_major@hotmail.com>

db/dbformat.h

@@ -28,10 +28,10 @@ static const int kNumLevels = 7;
 static const int kL0_CompactionTrigger = 4;
 
 // Soft limit on number of level-0 files.  We slow down writes at this point.
-static const int kL0_SlowdownWritesTrigger = 8;
+static const int kL0_SlowdownWritesTrigger = 16;
 
 // Maximum number of level-0 files.  We stop writes at this point.
-static const int kL0_StopWritesTrigger = 12;
+static const int kL0_StopWritesTrigger = 64;
 
 // Maximum level to which a new compacted memtable is pushed if it
 // does not create overlap.  We try to push to level 2 to avoid the