Pipelined Apache HTTP Server: January 2008

Thursday, January 31, 2008

Server limits

Set this in plapache2/conf/extra/httpd-mpm.conf:

<IfModule mpm_prefork_module>
    StartServers          1
    MinSpareServers       1
    MaxSpareServers       1
    MaxClients            1
    MaxRequestsPerChild   0
    ServerLimit           1
</IfModule>

Uncomment this in plapache2/conf/httpd.conf
#Include conf/extra/httpd-mpm.conf

Monday, January 21, 2008

Timings by Phase on dvorak

h secs=10 nsecs=177964398
p secs=6 nsecs=682820996
r secs=9 nsecs=811368345
s secs=5 nsecs=551042645
T secs=32 nsecs=223196384

Sunday, January 20, 2008

Prefork Timings on dvorak

$ ./ab -n 100000 -c 100 localhost:8080/index.html
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright 2006 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
Finished 100000 requests


Server Software:        Apache/2.2.4
Server Hostname:        localhost
Server Port:            8080

Document Path:          /index.html
Document Length:        44 bytes

Concurrency Level:      100
Time taken for tests:   62.52683 seconds
Complete requests:      100000
Failed requests:        0
Write errors:           0
Total transferred:      28800864 bytes
HTML transferred:       4400132 bytes
Requests per second:    1611.53 [#/sec] (mean)
Time per request:       62.053 [ms] (mean)
Time per request:       0.621 [ms] (mean, across all concurrent requests)
Transfer rate:          453.24 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    8   7.6      7      69
Processing:     9   52  16.4     52     146
Waiting:        0   28  12.8     25     118
Total:         15   61  19.3     60     177

Percentage of the requests served within a certain time (ms)
  50%     60
  66%     71
  75%     76
  80%     79
  90%     87
  95%     93
  98%    100
  99%    104
 100%    177 (longest request)

Pipelined Timings on dvorak


$ ./ab -n 100000 -c 100 localhost:8080/index.html
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright 2006 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
Finished 100000 requests


Server Software:        Apache/2.2.4
Server Hostname:        localhost
Server Port:            8080

Document Path:          /index.html
Document Length:        44 bytes

Concurrency Level:      100
Time taken for tests:   138.887738 seconds
Complete requests:      100000
Failed requests:        0
Write errors:           0
Total transferred:      28800576 bytes
HTML transferred:       4400088 bytes
Requests per second:    720.01 [#/sec] (mean)
Time per request:       138.888 [ms] (mean)
Time per request:       1.389 [ms] (mean, across all concurrent requests)
Transfer rate:          202.50 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0   23  22.2     17     208
Processing:     6  110  47.4    102    1457
Waiting:        1   59  40.4     51    1457
Total:          8  133  51.7    125    1457

Percentage of the requests served within a certain time (ms)
  50%    125
  66%    147
  75%    162
  80%    171
  90%    198
  95%    223
  98%    258
  99%    282
 100%   1457 (longest request)

Makefile

In the server directory's Makefile,
under LTLIBRARY_SOURCES, added pipeline.c

Pipelined Timings

$ ./ab -n 100000 -c 100 localhost:8080/index.html
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright 2006 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
Finished 100000 requests


Server Software:        Apache/2.2.4
Server Hostname:        localhost
Server Port:            8080

Document Path:          /index.html
Document Length:        44 bytes

Concurrency Level:      100
Time taken for tests:   27.188178 seconds
Complete requests:      100000
Failed requests:        0
Write errors:           0
Total transferred:      28900000 bytes
HTML transferred:       4400000 bytes
Requests per second:    3678.07 [#/sec] (mean)
Time per request:       27.188 [ms] (mean)
Time per request:       0.272 [ms] (mean, across all concurrent requests)
Transfer rate:          1038.02 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   1.0      0      18
Processing:     0   26  33.0     17     628
Waiting:        0   25  33.0     16     628
Total:          0   26  33.0     18     628

Percentage of the requests served within a certain time (ms)
  50%     18
  66%     23
  75%     28
  80%     35
  90%     69
  95%     93
  98%    122
  99%    150
 100%    628 (longest request)

Prefork benchmark

$ ./ab -n 100000 -c 100 localhost:8080/index.html
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright 2006 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
Finished 100000 requests


Server Software:        Apache/2.2.4
Server Hostname:        localhost
Server Port:            8080

Document Path:          /index.html
Document Length:        44 bytes

Concurrency Level:      100
Time taken for tests:   15.629945 seconds
Complete requests:      100000
Failed requests:        0
Write errors:           0
Total transferred:      28914450 bytes
HTML transferred:       4402200 bytes
Requests per second:    6397.98 [#/sec] (mean)
Time per request:       15.630 [ms] (mean)
Time per request:       0.156 [ms] (mean, across all concurrent requests)
Transfer rate:          1806.53 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    4   3.3      6      23
Processing:     5   10   3.7     10      88
Waiting:        1    8   3.8      8      87
Total:          8   15   3.3     15      88

Percentage of the requests served within a certain time (ms)
  50%     15
  66%     16
  75%     16
  80%     17
  90%     18
  95%     19
  98%     21
  99%     22
 100%     88 (longest request)

Pipelined Timings by Phase

h secs=3 nsecs=938123674
p secs=5 nsecs=14353627
r secs=3 nsecs=853008646
s secs=0 nsecs=248275943
T secs=13 nsecs=53761890

Pipelined Apache HTTP Server