Pre-declaration: The delay here is not referring to the loading time of the web page, but how long the change is reflected on the client after a file is modified.
Now my site gets weird, file changes can not be immediately reflected to the client. Even if I deliberately made a fatal error, the page still shows up normal, it will take a while before server give a HTTP 500 error. It does not seem to have anything to do with the application code, I guess my web server have a problem. Considering this situation did not occur before, I think it’s FastCGI caused this problem.
Have you encountered the same situation? My web server is apache, interpret PHP code via FastCGI.