Hi list.
I have a tomcat 5.0.19 server (java 1.4.2_08) who slow the connection
when i use the keepAlive method. This is normal?
## KeepAlive test (no keepAlive below):
$ /usr/sbin/ab2 -n 2100 -c 21 -k
"http://192.168.252.150:8080/App/AppServlet?c=480&f=c&l=27000058309187601480
014&u=0"
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.121.2.8 $> apache-2.0
Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright (c) 1998-2002 The Apache Software Foundation,
http://www.apache.org/
Benchmarking 192.168.252.150 (be patient)
Completed 210 requests
Completed 420 requests
Completed 630 requests
Completed 840 requests
Completed 1050 requests
Completed 1260 requests
Completed 1470 requests
Completed 1680 requests
Completed 1890 requests
Finished 2100 requests
Server Software: Apache-Coyote/1.1
Server Hostname: 192.168.252.150
Server Port: 8080
Document Path:
/App/AppServlet?c=480&f=c&l=27000058309187601480014&u=0
Document Length: 31 bytes
Concurrency Level: 21
Time taken for tests: 3.131663 seconds
Complete requests: 2100
Failed requests: 0
Write errors: 0
Keep-Alive requests: 2090
Total transferred: 331750 bytes
HTML transferred: 65100 bytes
Requests per second: 670.57 [#/sec] (mean)
Time per request: 31.317 [ms] (mean)
Time per request: 1.491 [ms] (mean, across all concurrent requests)
Transfer rate: 103.14 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.1 0 1
Processing: 12 1611 844.6 1663 3130
Waiting: 8 30 32.8 20 414
Total: 12 1611 844.6 1663 3130
Percentage of the requests served within a certain time (ms)
50% 1663
66% 2056
75% 2377
80% 2495
90% 2715
95% 2842
98% 3033
99% 3091
100% 3130 (longest request)
# No KeepAlive test
$ /usr/sbin/ab2 -n 2100 -c 21
"http://192.168.252.150:8080/App/AppServlet?c=480&f=c&l=27000058309187601480
014&u=0"
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.121.2.8 $> apache-2.0
Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright (c) 1998-2002 The Apache Software Foundation,
http://www.apache.org/
Benchmarking 192.168.252.150 (be patient)
Completed 210 requests
Completed 420 requests
Completed 630 requests
Completed 840 requests
Completed 1050 requests
Completed 1260 requests
Completed 1470 requests
Completed 1680 requests
Completed 1890 requests
Finished 2100 requests
Server Software: Apache-Coyote/1.1
Server Hostname: 192.168.252.150
Server Port: 8080
Document Path:
/App/AppServlet?c=480&f=c&l=27000058309187601480014&u=0
Document Length: 31 bytes
Concurrency Level: 21
Time taken for tests: 3.249691 seconds
Complete requests: 2100
Failed requests: 0
Write errors: 0
Total transferred: 321300 bytes
HTML transferred: 65100 bytes
Requests per second: 646.22 [#/sec] (mean)
Time per request: 32.497 [ms] (mean)
Time per request: 1.547 [ms] (mean, across all concurrent requests)
Transfer rate: 96.32 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.1 0 1
Processing: 7 31 34.4 20 517
Waiting: 7 31 34.4 20 516
Total: 7 31 34.4 20 517
Percentage of the requests served within a certain time (ms)
50% 20
66% 27
75% 33
80% 39
90% 61
95% 103
98% 136
99% 167
100% 517 (longest request)
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