mongod service:
 ./bin/mongod --dbpath  /mnt/nvme0n1/db --logpath /mnt/nvme0n1/logs/mongo.log

ycsb command:
 ./bin/ycsb run mongodb -P workloads/workloadb -p operationcount=10000000 -s -threads 8

ycsb output:
/usr/lib64/jvm/java-1.8.0-openjdk-1.8.0/jre/bin/java -cp /home/dungeon/ycsb-0.12.0/mongodb-binding/conf:/home/dungeon/ycsb-0.12.0/conf:/home/dungeon/ycsb-0.12.0/lib/core-0.12.0.jar:/home/  dungeon/ycsb-0.12.0/lib/htrace-core4-4.1.0-incubating.jar:/home/dungeon/ycsb-0.12.0/lib/jackson-core-asl-1.9.4.jar:/home/dungeon/ycsb-0.12.0/lib/jackson-mapper-asl-1.9.4.jar:/home/dungeon  /ycsb-0.12.0/lib/HdrHistogram-2.1.4.jar:/home/dungeon/ycsb-0.12.0/mongodb-binding/lib/mongodb-binding-0.12.0.jar:/home/dungeon/ycsb-0.12.0/mongodb-binding/lib/slf4j-api-1.6.4.jar:/home/du  ngeon/ycsb-0.12.0/mongodb-binding/lib/logback-classic-1.1.2.jar:/home/dungeon/ycsb-0.12.0/mongodb-binding/lib/logback-core-1.1.2.jar:/home/dungeon/ycsb-0.12.0/mongodb-binding/lib/mongodb-  async-driver-2.0.1.jar:/home/dungeon/ycsb-0.12.0/mongodb-binding/lib/mongo-java-driver-3.0.3.jar com.yahoo.ycsb.Client -db com.yahoo.ycsb.db.MongoDbClient -P workloads/workloadb -p operat  ioncount=10000000 -s -threads 8 -t
YCSB Client 0.12.0
Command line: -db com.yahoo.ycsb.db.MongoDbClient -P workloads/workloadb -p operationcount=10000000 -s -threads 8 -t
Loading workload...
Starting test.
2017-11-30 07:13:26:077 0 sec: 0 operations; est completion in 0 seconds
mongo client connection created with mongodb://localhost:27017/ycsb?w=1
DBWrapper: report latency for each error is false and specific error codes to track for latency are: []
DBWrapper: report latency for each error is false and specific error codes to track for latency are: []
DBWrapper: report latency for each error is false and specific error codes to track for latency are: []
DBWrapper: report latency for each error is false and specific error codes to track for latency are: []
DBWrapper: report latency for each error is false and specific error codes to track for latency are: []
DBWrapper: report latency for each error is false and specific error codes to track for latency are: []
DBWrapper: report latency for each error is false and specific error codes to track for latency are: []
DBWrapper: report latency for each error is false and specific error codes to track for latency are: []
2017-11-30 07:13:36:049 10 sec: 888008 operations; 88791.92 current ops/sec; est completion in 1 minutes [READ: Count=843857, Max=41951, Min=38, Avg=82.51, 90=94, 99=129, 99.9=343, 99.99=  10455] [UPDATE: Count=45054, Max=31183, Min=77, Avg=149.69, 90=172, 99=259, 99.9=557, 99.99=17327]
2017-11-30 07:13:46:048 20 sec: 1780597 operations; 89258.9 current ops/sec; est completion in 1 minutes [READ: Count=847913, Max=156287, Min=38, Avg=84.09, 90=102, 99=137, 99.9=195, 99.9  9=2135] [UPDATE: Count=43874, Max=24559, Min=81, Avg=146.8, 90=173, 99=234, 99.9=309, 99.99=2881]
2017-11-30 07:13:56:047 30 sec: 2639370 operations; 85877.3 current ops/sec; est completion in 1 minutes [READ: Count=815499, Max=23007, Min=39, Avg=87.62, 90=117, 99=156, 99.9=219, 99.99  =2565] [UPDATE: Count=43293, Max=16607, Min=73, Avg=152.16, 90=188, 99=249, 99.9=322, 99.99=2937]
2017-11-30 07:14:06:048 40 sec: 3556873 operations; 91750.3 current ops/sec; est completion in 1 minutes [READ: Count=871920, Max=21679, Min=38, Avg=81.85, 90=93, 99=123, 99.9=180, 99.99=  1956] [UPDATE: Count=45568, Max=3531, Min=73, Avg=146.08, 90=167, 99=233, 99.9=296, 99.99=830]
2017-11-30 07:14:16:048 50 sec: 4478285 operations; 92141.2 current ops/sec; est completion in 1 minutes [READ: Count=875690, Max=17263, Min=37, Avg=81.4, 90=98, 99=129, 99.9=181, 99.99=2  405] [UPDATE: Count=45695, Max=17135, Min=76, Avg=147.95, 90=173, 99=232, 99.9=321, 99.99=3171]
2017-11-30 07:14:26:047 60 sec: 5467164 operations; 98887.9 current ops/sec; est completion in 50 seconds [READ: Count=939275, Max=18735, Min=37, Avg=75.83, 90=90, 99=122, 99.9=174, 99.99  =309] [UPDATE: Count=49630, Max=18063, Min=78, Avg=136.65, 90=166, 99=220, 99.9=298, 99.99=585]
2017-11-30 07:14:36:047 70 sec: 6386864 operations; 91970 current ops/sec; est completion in 40 seconds [READ: Count=873468, Max=28207, Min=37, Avg=80.05, 90=93, 99=124, 99.9=186, 99.99=2  273] [UPDATE: Count=46214, Max=222975, Min=68, Avg=176.74, 90=169, 99=238, 99.9=589, 99.99=79999]
2017-11-30 07:14:46:047 80 sec: 7286839 operations; 89997.5 current ops/sec; est completion in 30 seconds [READ: Count=854745, Max=20575, Min=38, Avg=83.45, 90=97, 99=132, 99.9=191, 99.99  =2907] [UPDATE: Count=45224, Max=4279, Min=75, Avg=148.87, 90=174, 99=239, 99.9=312, 99.99=2819]
2017-11-30 07:14:56:048 90 sec: 8170016 operations; 88317.7 current ops/sec; est completion in 21 seconds [READ: Count=838951, Max=26335, Min=40, Avg=85.12, 90=108, 99=149, 99.9=207, 99.9  9=2865] [UPDATE: Count=44235, Max=22783, Min=80, Avg=150.62, 90=183, 99=248, 99.9=316, 99.99=3263]
2017-11-30 07:15:06:048 100 sec: 9152595 operations; 98257.9 current ops/sec; est completion in 10 seconds [READ: Count=933125, Max=36831, Min=35, Avg=76.29, 90=88, 99=112, 99.9=166, 99.9  9=2585] [UPDATE: Count=49451, Max=15263, Min=70, Avg=138.44, 90=163, 99=221, 99.9=295, 99.99=3079]
2017-11-30 07:15:16:047 110 sec: 9762113 operations; 60951.8 current ops/sec; est completion in 3 seconds [READ: Count=578796, Max=44479, Min=38, Avg=76.54, 90=89, 99=114, 99.9=168, 99.99  =1128] [UPDATE: Count=30636, Max=44191, Min=73, Avg=138.43, 90=161, 99=218, 99.9=294, 99.99=447]
2017-11-30 07:15:26:047 120 sec: 9762113 operations; 0 current ops/sec; est completion in 3 seconds [READ: Count=0, Max=0, Min=9223372036854775807, Avg=?, 90=0, 99=0, 99.9=0, 99.99=0] [UP  DATE: Count=0, Max=0, Min=9223372036854775807, Avg=?, 90=0, 99=0, 99.9=0, 99.99=0]
2017-11-30 07:15:36:047 130 sec: 9762113 operations; 0 current ops/sec; est completion in 4 seconds [READ: Count=0, Max=0, Min=9223372036854775807, Avg=?, 90=0, 99=0, 99.9=0, 99.99=0] [UP  DATE: Count=0, Max=0, Min=9223372036854775807, Avg=?, 90=0, 99=0, 99.9=0, 99.99=0]