[Web-SIG] Fwd: wsgiref.simple_server slow on slow network
Phillip J. Eby
pje at telecommunity.com
Wed Jul 23 01:34:42 CEST 2008
At 12:21 AM 7/23/2008 +0200, Irmen de Jong wrote:
>Tibor Arpas wrote:
>>I'm quite new to python and I ran into a performance problem with
>>wsgiref.simple_server. I'm running this little program.
>>I get many hundreds of responses/second on my local computer, which is fine.
>>But when I access this server through our VPN it performs very bad.
>Could it be that the wsgiref is doing a reverse DNS lookup for every
>(for instance to determine the remote server hostname for some
>reason such as logging)
>That could be a very slow operation.
>Just an idea, I have no idea about the workings of wsgiref, I've
>just seen this happening in other situations.
It isn't really even wsgiref-related. First, wsgiref.simple_server
is based on the other stdlib HTTP server modules.
Second, it's not intended for production use.
Third, it's not multi-threaded, which is likely to be a factor if the
performance tests are done using concurrent requests.
More information about the Web-SIG