Hi, Currently I have a jetty webapp that uses continuations and actors to scale to many connections. While this isn't a lift question per se I was hoping the folks on this list could help since it's my understanding that Lift does similar stuff under certain setups.
Basically, the functionality that I'm testing receives a request, suspends it via jetty continuations, and fires it off to an actor for processing. Once the work is done (some benchmark database requests, usually on the order of 10 to 100ms) the continuation is resumed and results are returned. As I scale up to 1000+ concurrents in apache benchmark, I notice that the vast majority of time from receipt of the request to response, is between when the continuation is suspended and when my actor receives the message. This strikes me as bizarre since I'm monitoring the mailbox and it never grows to a size larger than 1 or 2. It gets to the point where requests are taking 10 seconds to come back and 9.5 of those seconds are my actor waiting to receive the work request. Throughout the load test the database does not become stressed. Any thoughts on this? I guess I'm hoping there is something basic that I'm doing wrong. Just in case, I've tried creating an actor pool to receive the work requests but that apparently has no effect on the results. My only speculation at this point is that perhaps the reason messages are taking so long to get to my actor is because jetty itself is overloaded trying to queue requests but that is just a guess. Thanks, Lincoln --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~----------~----~----~----~------~----~------~--~---
