-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Federico Schwindt wrote:
On 10/5/06, Tres Seaver <tseaver@palladion.com> wrote:
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Pascal Peregrina wrote:
We made some basic load testing against different Zope2 versions and found some unexpected results. Everything is summarized here : http://talk.lastminute.com/wiki/index.php/Loadtest
We would appreciate any comment about it, and of course will answer any question you might have about our test.
Can you tell us what the scale is on the graph? Also, for the benefit of those "playing along at home", I'm attaching a .zexp file of the test tree, made according to your spec.
The tests you've made are substantially different. If you look at the zip files, the number of concurrent requests were 100. I'll try to explain the parameters used in the tests tomorrow to clarify the situation.
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OK, here is with 100 concurrent: $ ab -c 100 -n 1000 http://localhost:8080/test/test2/test3/test.html This is ApacheBench, Version 2.0.41-dev <$Revision: 1.141 $> 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 localhost (be patient) Completed 100 requests Completed 200 requests Completed 300 requests Completed 400 requests Completed 500 requests Completed 600 requests Completed 700 requests Completed 800 requests Completed 900 requests Finished 1000 requests Server Software: Zope/(Zope Server Hostname: localhost Server Port: 8080 Document Path: /test/test2/test3/test.html Document Length: 326 bytes Concurrency Level: 100 Time taken for tests: 6.116692 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 Total transferred: 540214 bytes HTML transferred: 342626 bytes Requests per second: 163.49 [#/sec] (mean) Time per request: 611.669 [ms] (mean) Time per request: 6.117 [ms] (mean, across all concurrent requests) Transfer rate: 86.16 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 1.6 0 6 Processing: 174 586 209.2 584 6096 Waiting: 170 570 206.8 577 6086 Total: 180 587 209.3 584 6102 Percentage of the requests served within a certain time (ms) 50% 584 66% 594 75% 619 80% 656 90% 695 95% 826 98% 833 99% 864 100% 6102 (longest request) Note that the per-request average is still around 6 ms (Zope 2.7 here). Increasing the concurrency above 4 doesn't stress Zope CPU-wise, because (by default) there are only 4 appserver "worker" threads available to respond to requests. Tres. - -- =================================================================== Tres Seaver +1 202-558-7113 tseaver@palladion.com Palladion Software "Excellence by Design" http://palladion.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFJX7M+gerLs4ltQ4RAtxTAJ4waJhWazqiaAvJvkMoKvEXS7VCAwCglIiK wxClKwFBUwIC9RmS/AIbujo= =ORqb -----END PGP SIGNATURE-----