Performing a Test

The following operations must be performed in a new window, and the window for starting the etcd cluster cannot be closed.
Change the IP addresses in the commands based on the actual situation.

Open a new window and go to the benchmark installation path on the leader node.
```
cd /usr/local/etcd/tools/benchmark/bin                 
```

Perform a write test on a single node by referring to the following command:

./benchmark -
-endpoints=http://10.208.71.111:2379 --target-leader --conns=1 --clients=800 put --key-size=8 --sequential-keys --total=100000 --val-size=256

If the following information is displayed, the operation is successful:

Perform a read test on a single node by referring to the following command:

./benchmark --endpoints="http://10.208.71.111:2379"  --conns=1 --clients=1  range foo --consistency=l --total=50000

./benchmark --endpoints="http://10.208.71.111:2379"  --conns=1 --clients=1  range foo --consistency=s --total=50000

Perform a write test on multiple nodes by referring to the following command:

./benchmark --endpoints="http://10.208.71.111:2379,http://10.208.107.205:2379,http://10.208.72.182:2379"  --target-leader --conns=1 --clients=1 put --key-size=8 --sequential-keys --total=50000 --val-size=256

Perform a read test on multiple nodes by referring to the following command:
```
./benchmark --endpoints="http://10.208.71.111:2379,http://10.208.107.205:2379,http://10.208.72.182:2379"  --conns=1 --clients=1  range foo --consistency=l --total=50000
```
```
./benchmark --endpoints="http://10.208.71.111:2379,http://10.208.107.205:2379,http://10.208.72.182:2379"  --conns=1 --clients=1  range foo --consistency=s --total=50000
```
- In the single-node test commands, the IP address of the leader node is used. In the multi-node test commands, the IP addresses of nodes 1, 2, and 3 in the cluster are used.
- The command parameters are described as follows:
  --key-size: key size
  
  --val-size: value size
  
  --conns: number of connections
  
  --clients: number of clients
  
  --total: number of keys
  
  --consistency: consistency. The value l indicates linearizable, and s indicates serializable.

Parent topic: etcd Benchmark Test Guide