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http compression check

# Look for Content-Encoding: gzip or Content-Encoding: deflate:

$ curl -L -I -H 'Accept-Encoding: gzip,deflate' http://www.godaddy.com 2>&1 | grep ^Content-Encoding
Content-Encoding: gzip


Load Balancing

HAProxy

Testing vhost with curl
curl -H 'Host: www.mydomain.com' http://1.2.3.4/


Reverse proxy benchmark
A simple benchmark using ab. It's an jsp page served from tomcat via apache + mod_jk. This probably does not reflect the real world usage as it's benchmarked from the same box.
Server Direct VarnishNginx
Document size 417b 417b 417b
Concurrent level 100 100 100
Requests 10000 10000 10000
Mean time/request 676.88ms 53.5ms 56.27ms
Transfer rate 94.51KB/s 1284.88KB/s 1120.87KB/s
Failed requests 0 0 0
Longest request 66042 181 406

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