TCP Retransmission and TCP Dup ACK

Hi,

We have high TCP Retransmission on Solaris OS.

We are using apache tomcat, and try to benchmark with this command :

$ abs -v 1 -c 100 -n 500 https://192.168.32.45:4089/docs/testfile5kb

This is ApacheBench, Version 2.3 <$Revision: 1638069 $>

Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/

Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking 192.168.32.45 (be patient)

Completed 100 requests

Completed 200 requests

Completed 300 requests

Completed 400 requests

Completed 500 requests

Finished 500 requests

Server Software:        Apache-Coyote/1.1

Server Hostname:        192.168.32.45

Server Port:            4089

SSL/TLS Protocol:       TLSv1.2,ECDHE-RSA-AES256-GCM-SHA384,2048,256

Document Path:          /docs/testfile5kb

Document Length:        1038 bytes

Concurrency Level:      100

Time taken for tests:   105.955 seconds

Complete requests:      500

Failed requests:        4