Question

getting:

aspnet_wp.exe  (PID: 988) was recycled because memory consumption exceeded the 148 MB (60 percent of available RAM).

any suggestion of web.config etc optimization? did already all the debug/release compile stuff. but still it takes to fast to much memory. machine got 256mbs ram, on 512mb it runs smooth. want to squeeze it down as much as possible. within code it did also as much to keep memory low, but it kind of 50mb data only. this must be possible. or does the framework need so much?

Answer 1

Well, it should fit, but it depends on what you’re doing with it, and which version of IIS you’re running.

Optimizing Memory Usage (IIS 6.0)

Servers running IIS 6.0 benefit from ample physical memory. Generally, the more memory that you add, the more the servers use and the better they perform. IIS 6.0 requires a minimum of 128 MB of memory; at least 256 MB is recommended. If you are running memory-intensive applications, your server might require much more memory to run optimally — more than the recommended 256 MB of memory.

IIS 7.0 however has somewhat larger requirements:

• Minimum: 512 MB
• Recommended: 2 GB or more

That article has a few other recommendations on optimisations you can carry out, I’d also recommend Tess Ferrandez’s blog, especially her post “.NET Memory usage – A restaurant analogy” which explains memory allocation nicely, and her other posts on debugging memory usage – which start in a similar place to RickNZ’s suggestions.