batch compilation

[Wei]

Hello,

Does anyone know how to turn on "batch compilation" of
ASP.NET application ?

Though by default I think the asp pipeline should compile
in batch mode, yet I set
<compilation defaultLanguage="C#" debug="true"
batch="true" batchTimeout="120"
maxBatchSize="9999"
maxBatchGeneratedFileSize="9999"
numRecompilesBeforeAppRestart="15" />

in the web.config or machine.config , but it still doesn't
work.
I get delays for each page first time accessed
and separete dll's are generated in "Temporary ASP.NET
Files" folder for each page.

Any one know why this happens? Am I wrong?

Thanks,

Wei