First question on the Enterprise Synthetic forum, hope someone actually sees this :)
We've been trying to understand the Client Time and Server Time metrics as reported in the CAS's default "Synthetic - Application Performance" view.
We have a web application with transactions for login, and two additional pages that query a bunch of data from the DB, and then update the screen. For login, we have 99 % Client Time and 1 % Server Time. For the two other transactions, we have 90 % Client Time, 10 % Server Time. The time spent on network is negligible.
So, are we to understand that the server takes a really short time to process the query and send back a response, and then the client host / web browser is basically taking a really long time to update the data on screen? Hard to believe that e.g. for the login process, the user authentication would only take some milliseconds. Seems that the results are incorrect, any thoughts on why the response times are interpeted this way?
This is what the documentation says:
Client time is the time interval between the last data packet from transaction response message from TCP session server to the first packet of the acknowledgment from TCP session server to the client. Client time is similar to server time, but measured in context of transaction response message.
Server time is the time it took the server to produce a response for the given request.
Answer by David A. ·
I'm not going to move your question, I don't have rights to do it :). But yes the defintion and your supportions are right, the client time is the time spend on the client executing.
But....the scripts validations can produce or add a little bit more in this time. I mean, if you put a validation on an objet text that is a list that is starting to load, this could add some more client time.
I use to put validations on the main objects, of If I do over a list or tables objets, I wait first for an objet that will assure me that the list or the table is loaded and then I go over the content iside.
I hope it helps,
Enterprise Synthetic: No CNS Times 2 Answers