Re: sealed.pm v4.0.0 is out

Joe Schaefer <[email protected]> Sat, 27 Aug 2022 09:25:50 -0700
Newsgroups	gmane.comp.apache.mod-perl
Message-ID	<CAFQGv+b+RG01LYfmBQ9vPxX6W=b6pN+0Kxogx8XY1W+y3k8ujA@mail.gmail.com>
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So a <600MB total RSS footprint for the entire show, and I can stably
sustain 1000 concurrent ModPerl::Registry requests, in a few milliseconds
per request.
Good luck doing anything this efficiently with a multi-tiered dynamic
content delivery regime.  The real tuning effort is to balance mpm_event
threads (100 - 1000x)
and ithreads.

- --
Joe Schaefer, Ph.D.

We only build what you need built.
<[email protected]>
954.253.3732

On 2022-08-27 at 15:42, [email protected] wrote:
> See https://sunstarsys.com/essays/perl7-sealed-lexicals.  For the full
effect, you will need to build B::Generate with this patched version
instead: https://github.com/SunStarSys/cms/blob/master/Generate.xs
>
> Sample mod_perl config + benchmarks:
>
> <IfModule mpm_event_module>
>         StartServers                     2
>         MinSpareThreads                100
>         MaxSpareThreads                500
>         ThreadLimit                   1000
>         ThreadsPerChild                100
>         MaxRequestWorkers          1000000
>         MaxConnectionsPerChild           0
> </IfModule>
>
> <IfModule mod_perl.c>
>   PerlSwitches -T -I/home/joesuf4/src/cms/lib
>   PerlInterpStart 2
>   PerlInterpMax 4
>   PerlInterpMinSpare 1
>   PerlInterpMaxSpare 4
>   PerlInterpMaxRequests 1000000
>   PerlOptions +GlobalRequest
>
>   <Directory /home/joesuf4/src/cms>
>     Require all granted
>     AddHandler perl-script .pl
>     PerlResponseHandler ModPerl::Registry
>     Options +ExecCGI
>   </Directory>
>
>   <Directory /home/joesuf4/src/trunk/content>
>     Require all granted
>   </Directory>
>
>   <VirtualHost *:80>
>     ServerName localhost
>     DocumentRoot /home/joesuf4/src/trunk/content
>     Alias /perl-script /home/joesuf4/src/cms
>   </VirtualHost>
>
> </IfModule>
>
>
> ab -n 10000 -c 1000 http://localhost/perl-script/enquiry.pl
> This is ApacheBench, Version 2.3 <$Revision: 1879490 $>
> 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 1000 requests
> Completed 2000 requests
> Completed 3000 requests
> Completed 4000 requests
> Completed 5000 requests
> Completed 6000 requests
> Completed 7000 requests
> Completed 8000 requests
> Completed 9000 requests
> Completed 10000 requests
> Finished 10000 requests
>
>
> Server Software:        Apache/2.4.52
> Server Hostname:        localhost
> Server Port:            80
>
> Document Path:          /perl-script/enquiry.pl
> Document Length:        1329 bytes
>
> Concurrency Level:      1000
> Time taken for tests:   1.218 seconds
> Complete requests:      10000
> Failed requests:        0
> Total transferred:      15010000 bytes
> HTML transferred:       13290000 bytes
> Requests per second:    8207.94 [#/sec] (mean)
> Time per request:       121.833 [ms] (mean)
> Time per request:       0.122 [ms] (mean, across all concurrent requests)
> Transfer rate:          12031.37 [Kbytes/sec] received
>
> Connection Times (ms)
>               min  mean[+/-sd] median   max
> Connect:        0    2   6.2      0      24
> Processing:     4   93  49.6     82     458
> Waiting:        1   80  44.5     71     455
> Total:         17   95  49.5     84     458
>
> Percentage of the requests served within a certain time (ms)
>   50%     84
>   66%    100
>   75%    112
>   80%    120
>   90%    147
>   95%    173
>   98%    233
>   99%    318
>  100%    458 (longest request)
>
> % pgrep -f apache2 | xargs -n1 ps -uwww
> USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME
COMMAND
> root      442827  0.0  0.1  18180 14244 ?        Ss   11:27   0:00
/usr/sbin/apache2 -k start
> USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME
COMMAND
> www-data  446387  1.7  1.5 7549352 129692 ?      Sl   11:28   0:12
/usr/sbin/apache2 -k start
> USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME
COMMAND
> www-data  451006 15.2  1.5 7483708 128468 ?      Sl   11:39   0:10
/usr/sbin/apache2 -k start
> USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME
COMMAND
> www-data  451317 11.7  1.4 7483772 119836 ?      Sl   11:39   0:07
/usr/sbin/apache2 -k start
> USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME
COMMAND
> www-data  451629  6.4  1.3 7483804 113012 ?      Sl   11:39   0:03
/usr/sbin/apache2 -k start
> USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME
COMMAND
> www-data  451929  1.1  1.4 7483816 116668 ?      Sl   11:39   0:00
/usr/sbin/apache2 -k start
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