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 Topic: mod_fcgid performance versus Server API |
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sarniso
Joined: 10 Jun 2020
Posts: 3
Location: UK
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 Posted: Wed 10 Jun '20 10:02 Post subject: mod_fcgid performance versus Server API |
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Hi folks
Running Apache 2.4.41 on Win Server 2019 , i7 processor with 8Gb ram (3.8ghz)....
Installed mod_fcgid on server above with PHP 7.3.12. No errors that I see in Apache.log .. but Wow performance with mod_fcgid is AWFUL compared to native API in Apache . I ran a ab benchmark twice, first with mod_fcgid enabled , then off. Here are the results , can someone help me understand why it is SOO much slower with mod_fcgid installed ??? I thought mod_fcgid was supposed to make things 5-20 times faster !!
First test with 100k req, 500 concurrency took 64 secs, second same test on same box , 2 seconds.!!!!
| Code: |
ab -n 100000 -c 500 http://localhost/phpinfo.php
This is ApacheBench, Version 2.3 <$Revision: 1843412 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient)
Completed 10000 requests
Completed 20000 requests
Completed 30000 requests
Completed 40000 requests
Completed 50000 requests
Completed 60000 requests
Completed 70000 requests
Completed 80000 requests
Completed 90000 requests
Completed 100000 requests
Finished 100000 requests
Server Software: Apache/2.4.41
Server Hostname: localhost
Server Port: 80
Document Path: /phpinfo.php
Document Length: 87336 bytes
Concurrency Level: 500
Time taken for tests: 197.838 seconds
Complete requests: 100000
Failed requests: 10359
(Connect: 0, Receive: 0, Length: 10359, Exceptions: 0)
Non-2xx responses: 439
Total transferred: 8717340316 bytes
HTML transferred: 8695432853 bytes
Requests per second: 505.46 [#/sec] (mean)
Time per request: 989.192 [ms] (mean)
Time per request: 1.978 [ms] (mean, across all concurrent requests)
Transfer rate: 43030.23 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 1.0 0 16
Processing: 0 975 6226.2 0 64564
Waiting: 0 971 6226.8 0 64564
Total: 0 975 6226.3 0 64564
Percentage of the requests served within a certain time (ms)
50% 0
66% 16
75% 16
80% 16
90% 16
95% 1018
98% 16121
99% 37213
100% 64564 (longest request)
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| Code: |
ab -n 100000 -c 500 http://localhost/phpinfo.php
This is ApacheBench, Version 2.3 <$Revision: 1843412 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient)
Completed 10000 requests
Completed 20000 requests
Completed 30000 requests
Completed 40000 requests
Completed 50000 requests
Completed 60000 requests
Completed 70000 requests
Completed 80000 requests
Completed 90000 requests
Completed 100000 requests
Finished 100000 requests
Server Software: Apache/2.4.41
Server Hostname: localhost
Server Port: 80
Document Path: /phpinfo.php
Document Length: 107680 bytes
Concurrency Level: 500
Time taken for tests: 40.511 seconds
Complete requests: 100000
Failed requests: 99901
(Connect: 0, Receive: 0, Length: 99901, Exceptions: 0)
Total transferred: 10788177369 bytes
HTML transferred: 10768377369 bytes
Requests per second: 2468.45 [#/sec] (mean)
Time per request: 202.556 [ms] (mean)
Time per request: 0.405 [ms] (mean, across all concurrent requests)
Transfer rate: 260059.13 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.8 0 16
Processing: 7 202 75.8 202 2108
Waiting: 0 177 75.7 180 2088
Total: 7 202 75.8 202 2108
Percentage of the requests served within a certain time (ms)
50% 202
66% 202
75% 203
80% 209
90% 212
95% 222
98% 242
99% 274
100% 2108 (longest request)
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Thanks |
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sarniso
Joined: 10 Jun 2020
Posts: 3
Location: UK
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| Posted: Wed 10 Jun '20 11:08 Post subject: my configuration |
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I know you will ask for this too
| Code: |
FcgidMaxProcesses 150
FcgidMaxProcessesPerClass 15
FcgidOutputBufferSize 65536
FcgidConnectTimeout 500
FcgidProcessLifeTime 0
FcgidMaxRequestsPerProcess 0
FcgidMinProcessesPerClass 0
FcgidFixPathinfo 0
FcgidProcessLifeTime 0
FcgidZombieScanInterval 20
FcgidMaxRequestLen 536870912
FcgidIOTimeout 500
FcgidTimeScore 3
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thanks |
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sarniso
Joined: 10 Jun 2020
Posts: 3
Location: UK
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| Posted: Wed 10 Jun '20 11:35 Post subject: Local v remote |
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| Tests I was running were on same server as apache was installed, however, running same tests from remote server with Apache 2.4.29 installed on it, and running ab on that server, FCGID is 30% faster accessing primary server via its internal IP address, than with it (FCGID) turned off ..... is this a network address resolution issue ? locally run ab with fast CGI off the test was unbelievably fast for the 90k page ! |
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James Blond
Moderator
Joined: 19 Jan 2006
Posts: 7371
Location: Germany, Next to Hamburg
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| Posted: Sun 14 Jun '20 18:36 Post subject: Re: mod_fcgid performance versus Server API |
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| sarniso wrote: | I thought mod_fcgid was supposed to make things 5-20 times faster !!
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That is sort of correct. That number is f(ast)cgi(d) compared to plain cgi. |
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