Keepalive tester MIT license

keepalive.sh

#!/bin/sh

NORMAL_GET='GET / HTTP/1.1\nHost: ec2-54-246-3-50.eu-west-1.compute.amazonaws.com\n'
KEEPALIVE_GET='GET / HTTP/1.1\nHost: ec2-54-246-3-50.eu-west-1.compute.amazonaws.com\nConnection: keep-alive\n'
HTTP_SERVER='ec2-54-246-3-50.eu-west-1.compute.amazonaws.com'
HTTP_SERVER_PORT=80

echo "Normal get\n"

time echo $NORMAL_GET | nc $HTTP_SERVER $HTTP_SERVER_PORT | cat

echo "\nkeep-alive get\n"

time sh -c "echo \"$KEEPALIVE_GET\"; sleep 70; echo \"$KEEPALIVE_GET\"" | nc $HTTP_SERVER $HTTP_SERVER_PORT | cat

Sample output

 $ sh keepalive.sh
Normal get

HTTP/1.1 200 OK
Server: nginx
Date: Fri, 30 Nov 2012 11:38:26 GMT
Content-Type: text/plain
Content-Length: 2
Connection: keep-alive

ok
real	0m0.506s
user	0m0.002s
sys	0m0.003s

keep-alive get

HTTP/1.1 200 OK
Server: nginx
Date: Fri, 30 Nov 2012 11:38:26 GMT
Content-Type: text/plain
Content-Length: 2
Connection: keep-alive

okHTTP/1.1 200 OK
Server: nginx
Date: Fri, 30 Nov 2012 11:39:36 GMT
Content-Type: text/plain
Content-Length: 2
Connection: keep-alive

ok
real	1m10.050s
user	0m0.004s
sys	0m0.005s