We have a web application that is load balanced on 4 servers running on windows 2008r2 servers. The web application hosted on iis 7.* experience periodic bad performance where quries can take extra 1-60 seconds than expected. Using nhprof and wireshark it seems possible to confirm the slow query results with the packet transmissions on the wire. I will try an attache an example, but the main flow is.
Client -> send query Database->reponse Client -> send ACK 15 seconds pass Client -> send PSH ACK Database -> response. NHProf sees the query response. We see many scenarios like this with different sleep intervals - 1 to 30 seconds. Sometimes the client send the PSH Ack immediately. Is this normal behaviour we are experiencing? Where to start investigating further if this is a windows / network driver / iis / oracle driver / nhibernate issue? Any advice or comments? Kr, Kim <https://lh4.googleusercontent.com/-YffCJBq3wBY/UZuFJZqv5fI/AAAAAAAAC3c/60E6ekSWvnQ/s1600/wiresharkTrace.png> -- You received this message because you are subscribed to the Google Groups "nhusers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/nhusers?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.
