PASS
BenchmarkWrite100EntryWithoutBatch	      50	  37415004 ns/op
BenchmarkWrite100EntryBatch10	     500	   3276359 ns/op
BenchmarkWrite100EntryBatch100	   10000	    362926 ns/op
BenchmarkWrite100EntryBatch500	   20000	     72593 ns/op
BenchmarkWrite100EntryBatch1000	   50000	     38534 ns/op
BenchmarkWrite1000EntryWithoutBatch	      50	  42914454 ns/op
BenchmarkWrite1000EntryBatch10	     500	   3900643 ns/op
BenchmarkWrite1000EntryBatch100	   10000	    386800 ns/op
BenchmarkWrite1000EntryBatch500	   20000	     81089 ns/op
BenchmarkWrite1000EntryBatch1000	   30000	     50059 ns/op
ok  	github.com/coreos/etcd/wal	26.175s