[users@httpd] What does this ab result mean

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Hi,

I have tested a mod_perl program that runs on my local computer under
Windows 2000, Apache 2.054, using the example below.
(I have also tried with -c 10 -n 100, and in that case it shows complete
requests 100, failed requests 99).

In this example it shows:
Complete requests:      300
Failed requests:        299

I don't know why, because if I try to open the page in the browser, the page
seems to be working fine.

Could you tell me why it appears so many "failed requests"?


C:\Documents and Settings\Administrator>ab -c 60 -n 300
http://presa/scripts/index.pl
This is ApacheBench, Version 2.0.41-dev <$Revision: 1.121.2.12 $> 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 presa (be patient)
Completed 100 requests
Completed 200 requests
Finished 300 requests
Server Software:        Apache/2.0.54
Server Hostname:        presa
Server Port:            80
Document Path:          /scripts/index.pl
Document Length:        9297 bytes
Concurrency Level:      60
Time taken for tests:   38.906250 seconds
Complete requests:      300
Failed requests:        299
(Connect: 0, Length: 299, Exceptions: 0)
Write errors:           0
Total transferred:      2884755 bytes
HTML transferred:       2799555 bytes
Requests per second:    7.71 [#/sec] (mean)
Time per request:       7781.250 [ms] (mean)
Time per request:       129.688 [ms] (mean, across all concurrent requests)
Transfer rate:          72.40 [Kbytes/sec] received
Connection Times (ms)
min  mean[+/-sd] median   max
Connect:        0    1   6.1      0      46
Processing:   312 7007 1749.2   7594    8171
Waiting:      312 6998 1748.8   7593    8156
Total:        312 7008 1747.8   7609    8171
Percentage of the requests served within a certain time (ms)
50%   7609
66%   7734
75%   7875
80%   7906
90%   7937
95%   7968
98%   8031
99%   8062
100%   8171 (longest request)
C:\Documents and Settings\Administrator>

Thank you.

Teddy



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