add warmup description

Readme.md

@@ -12,6 +12,10 @@ This tool provides an automated way to do aurora automatic performance testing,
   - Initialize performance testing environments.
 - **Performance Testing**:
   - Prepare data and run Sysbench OLTP tests.
+  - Warumup before performance test.
+- **Dynamic temp credentials Management**:
+  - Generate dynamic credentials for aws operations.
+  - Use dynamic credentials sts policy to avoid credentials expired.
 
 ## Prerequisites
 
@@ -70,7 +74,7 @@ This tool provides an automated way to do aurora automatic performance testing,
 | `--restore`                   | `-s`  | Restore data from S3 instead of preparing data with Sysbench, create a new cluster and restore data from mysql-snapshot      |
 | `--role-arn`                  | `-r`  | aws login account roleARN (default: `arn:aws:iam::986330900858:role/full-manager-service-role`)  |
 | `--role-session`              | `-n`  | aws login role session name (default: `full-manager-service-role`)                               |
-
+| `--warmup`                    | `-w`  | do sysbench warmup before performance test run                                    |
 
 ### Example Commands
 
@@ -114,8 +118,10 @@ bin/aurora-vs-TiDB --action=init-perftest-env --ec2-instance-id=i-1234567890abcd
 bin/aurora-vs-TiDB --action=prepare-data --ec2-instance-id=i-1234567890abcdef0 --cluster-id=Aurora-v3060-perftest
 ```
 
-#### Run Sysbench Performance Test
+#### Run Sysbench Performance Test(warmup or not warmup)
 ```bash
+bin/aurora-vs-TiDB --action=perftest-run --warmup --ec2-instance-id=i-1234567890abcdef0 --cluster-id=Aurora-v3060-perftest --perf-type=oltp_read_write
+
 bin/aurora-vs-TiDB --action=perftest-run --ec2-instance-id=i-1234567890abcdef0 --cluster-id=Aurora-v3060-perftest --perf-type=oltp_read_write
 ```