Dear All,
I am developing a witty web app, open source. It compiles surveys to c++
and uses the Wt for web.
One of the problems I will face in the near future is:
we send out links to users to take a survey. Wt creates a session. Now,
maybe due to a programming bug, the survey needs to be taken down, recompiled
and restarted. The old session information is lost and the user may have to
retake the survey from scratch. Currently what I am doing is using sessionId()
call to save the session in map and load the appropriate survey when the user
comes in. However when the app restarts, i want to be able to persist this data
to disk and have Wt reload this information if it is present in a special file,
or a file passed as an option to wt. This way I will be able to load the survey
status appropriately. I can use a custom signal to trigger the app to save the
data to disk, or save it one at a time, when sessions are created.
How do I do this with Wt?
2nd question:
I ran my test survey and found it to be using 4 Mb of ram - valgrind
numbers. I then ran the hello world application and found it to be using about
3 Mb - so my code is using the remaining 1 Mb. Also I hit the server for
parallel connections - and each session is using 4 Mb. If I have many sessions
running, the memory usage will be quite high. Are there any memory pools which
are created, which can be controlled by external parameters?
3rd question:
For some reason I have it in my head that the wthttpd server cannot handle
many connections in parallel. I know that fastcgi offers great performance in
such scenarios. Maybe I read the note on wthttpd in the older documentation ,
or maybe I'm just plain wrong. However I would like to ask, how many
connections can wthttpd handle before performance becomes bad.
If you would like me to post questions 2 and 3 as separate items, please
let me know.
Many thanks for your help in advance.
Kind Regards,
Neil
------------------------------------------------------------------------------
Using storage to extend the benefits of virtualization and iSCSI
Virtualization increases hardware utilization and delivers a new level of
agility. Learn what those decisions are and how to modernize your storage
and backup environments for virtualization.
http://www.accelacomm.com/jaw/sfnl/114/51434361/
_______________________________________________
witty-interest mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/witty-interest
