On Thu, 09 Feb 2006 14:20:05 -0500, Glyph Lefkowitz
On Thu, 2006-02-09 at 13:40 -0500, James Y Knight wrote:
Benchmarking is a dangerous activity.
Truly.
Here's the ab2 output for a twisted.web2 server: Server Software: Twisted/SVN-Trunk Server Hostname: kunai.lan Server Port: 8080 Document Path: / Document Length: 26 bytes Concurrency Level: 500 Time taken for tests: 36.267711 seconds Complete requests: 10000 Failed requests: 0 Write errors: 0 Total transferred: 1751750 bytes HTML transferred: 260260 bytes Requests per second: 275.73 [#/sec] (mean) Time per request: 1813.386 [ms] (mean) Time per request: 3.627 [ms] (mean, across all concurrent requests) Transfer rate: 47.15 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 87 718.4 1 9000 Processing: 108 461 122.7 474 1944 Waiting: 40 459 122.7 473 1942 Total: 110 548 766.0 481 10912 Percentage of the requests served within a certain time (ms) 50% 481 66% 505 75% 511 80% 515 90% 546 95% 585 98% 733 99% 3575 100% 10912 (longest request) And here's the output of a run against CherryPy: Server Software: CherryPy/2.2.0beta Server Hostname: kunai.lan Server Port: 8080 Document Path: / Document Length: 26 bytes Concurrency Level: 500 Time taken for tests: 7.855088 seconds Complete requests: 10000 Failed requests: 0 Write errors: 0 Total transferred: 1360136 bytes HTML transferred: 260026 bytes Requests per second: 1273.06 [#/sec] (mean) Time per request: 392.754 [ms] (mean) Time per request: 0.786 [ms] (mean, across all concurrent requests) Transfer rate: 169.06 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 102 545.4 0 3003 Processing: 16 229 169.3 305 3419 Waiting: 15 228 169.4 304 3418 Total: 33 332 623.2 306 6420 Percentage of the requests served within a certain time (ms) 50% 306 66% 329 75% 333 80% 334 90% 340 95% 343 98% 3202 99% 3460 100% 6420 (longest request) The CherryPy numbers might be artificially depressed; from a quick check, it seems the bottleneck may be on the client side. This is the wsgi app being served: def app(environ, start_response): start_response('200 Ok', [('Content-Type', 'text/plain')]) return 'WSGI is a wonderful thing.' Jean-Paul