On Tue, Apr 25, 2017 at 03:32:16PM +0800, jaseywang wrote: > Here is the analytics data, dropbox link: > https://www.dropbox.com/s/rn92z42ao5l5rdo/analytics.txt?dl=0
Thank you. Well, everything there looks pretty good, with low CPU usage everywhere and normal number of calls for each function. I'm noting that you've got some calls to debug_hdr() implying you were running in debuggingr mode, which spits all the received headers on stderr. Would you happen to have this sent to a terminal, to a file or any such thing ? If the thing consuming the debug output is slow, everything will be slow without eating CPU and that could perfectly explain the behaviour you're facing. Debugging is enabled either using the "debug" directive in the global section or with the "-d" argument on the command line. You definitely need to check this. Willy

