Update benchmark-integration instructions
MODIFY
dd-java-agent/benchmark-integration/README.md
dd-java-agent/benchmark-integration/README.md
# Datadog Java Agent Performance Tests
Integration level performance tests for the Datadog Java Agent.
+## Perf Script Dependencies
+
+`run-perf-test.sh` requires the following (available on homebrew or a linux package manager):
+
+* bash (>=4.0)
+* wrk
+* nc
+
## Running a Test
1. Build the shadow jar for the server you wish to test against.
2. Run the performance test script passing in the agent jars you wish to test.
@@ -9,6 +17,7 @@ Integration level performance tests for the Datadog Java Agent.
### Example
```
./gradlew dd-java-agent:benchmark-integration:jetty-perftest:shadowJar
-./run-perf-test.sh jetty-perftest/build/libs/jetty-perftest-0.2.12-SNAPSHOT-all.jar NoAgent ../dd-java-agent/build/libs/dd-java-agent-0.2.12-SNAPSHOT.jar
+# Compare a baseline (no agent) to the 0.2.10 and 0.2.9 releases.
+/usr/local/bin/bash ./run-perf-test.sh jetty-perftest/build/libs/jetty-perftest-*-all.jar NoAgent ../benchmark/releases/dd-java-agent-0.2.10.jar ../benchmark/releases/dd-java-agent-0.2.9.jar
cp /tmp/perf_results.csv ~/somewhere_else/
```

Update benchmark-integration instructions