Hang issue in NGINX Stream SSL Proxy Performance

[fero-majeeth]

I have tested NGINX with a stream SSL proxy using the Apache Benchmark (ab) tool. I am observing a hang while processing the last 50-100 requests, resulting in a timeout.

1. Please suggest any configuration changes to avoid hangs and improve stream SSL performance.
2. Is it good to use the ab tool to test a stream SSL proxy? If not, please suggest a good benchmark tool for stream SSL.”

stream {
upstream backend {
server 11.0.0.5:8000;
}

    server {
            listen 1020 ssl;
            ssl_certificate /nginx/certs/server.crt.pem;
            ssl_certificate_key /nginx/certs/server.key.pem;
            ssl_client_certificate /nginx/certs/RootCA.crt.pem;
            proxy_pass backend;
            proxy_ssl on;
            proxy_ssl_session_reuse off;
            proxy_ssl_asynch on;
            proxy_ssl_ciphers AES256-GCM-SHA384;
    }

}