LevelDB:    version 1.17
Date:       Sat Dec  6 22:23:04 2014
CPU:        4 * Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
CPUCache:   6144 KB
Keys:       16 bytes each
Values:     100 bytes each (50 bytes after compression)
Entries:    1000000
RawSize:    110.6 MB (estimated)
FileSize:   62.9 MB (estimated)
------------------------------------------------
fillseq      :       1.345 micros/op;   82.2 MB/s     
fillsync     :       5.196 micros/op;   21.3 MB/s (1000 ops)
fillrandom   :       2.246 micros/op;   49.3 MB/s     
overwrite    :       2.643 micros/op;   41.9 MB/s     
readrandom   :       5.119 micros/op; (1000000 of 1000000 found)
readrandom   :       4.774 micros/op; (1000000 of 1000000 found)
readseq      :       0.229 micros/op;  482.2 MB/s    
readreverse  :       0.381 micros/op;  290.5 MB/s    
compact      :  370161.000 micros/op;
readrandom   :       3.736 micros/op; (1000000 of 1000000 found)
readseq      :       0.209 micros/op;  529.4 MB/s    
readreverse  :       0.338 micros/op;  326.8 MB/s    
fill100K     :     491.868 micros/op;  193.9 MB/s (1000 ops)
crc32c       :       3.116 micros/op; 1253.5 MB/s (4K per op)
snappycomp   :       4.213 micros/op;  927.1 MB/s (output: 55.1%)
snappyuncomp :       0.738 micros/op; 5291.4 MB/s    
acquireload  :       0.293 micros/op; (each op is 1000 loads)

SQLite:     version 3.8.7.2
Date:       Sat Dec  6 22:24:55 2014
CPU:        4 * Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
CPUCache:   6144 KB
Keys:       16 bytes each
Values:     100 bytes each
Entries:    1000000
RawSize:    110.6 MB (estimated)
------------------------------------------------
fillseq      :       8.181 micros/op;   13.5 MB/s     
fillseqsync  :       8.096 micros/op;   13.7 MB/s (10000 ops)
fillseqbatch :       3.487 micros/op;   31.7 MB/s     
fillrandom   :      13.263 micros/op;    8.3 MB/s     
fillrandsync :       9.593 micros/op;   11.5 MB/s (10000 ops)
fillrandbatch :       9.965 micros/op;   11.1 MB/s    
overwrite    :      16.102 micros/op;    6.9 MB/s     
overwritebatch :      14.221 micros/op;    7.8 MB/s   
readrandom   :       5.926 micros/op;                 
readseq      :       1.936 micros/op;   49.3 MB/s    
fillrand100K :     277.467 micros/op;  343.8 MB/s (1000 ops)
fillseq100K  :     260.013 micros/op;  366.8 MB/s (1000 ops)
readseq      :      55.341 micros/op; 1723.3 MB/s  
readrand100K :      59.746 micros/op;

Kyoto Cabinet:    version 1.2.76, lib ver 16, lib rev 13
Date:           Sat Dec  6 22:27:18 2014
CPU:            4 * Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
CPUCache:       6144 KB
Keys:       16 bytes each
Values:     100 bytes each (50 bytes after compression)
Entries:    1000000
RawSize:    110.6 MB (estimated)
FileSize:   62.9 MB (estimated)
------------------------------------------------
fillseq      :       2.384 micros/op;   46.4 MB/s     
fillseqsync  :      64.381 micros/op;    1.7 MB/s (10000 ops)
fillrandsync :      69.823 micros/op;    1.6 MB/s (10000 ops)
fillrandom   :       6.465 micros/op;   17.1 MB/s     
overwrite    :       6.890 micros/op;   16.1 MB/s     
readrandom   :       6.745 micros/op;                 
readseq      :       0.936 micros/op;  118.2 MB/s    
fillrand100K :      91.960 micros/op; 1037.2 MB/s (1000 ops)
fillseq100K  :      95.852 micros/op;  995.1 MB/s (1000 ops)
readseq100K  :      35.100 micros/op; 2717.5 MB/s  
readrand100K :      31.286 micros/op;