https://bz.apache.org/bugzilla/show_bug.cgi?id=66248
--- Comment #6 from Vladimir Sitnikov <sitnikov.vladi...@gmail.com> --- Well, historically, JMeter thread corresponds to a "user session", so per-thread caching is probably not that far from what typical applications would have. For instance, if you fully close web browser, and then open it again, I guess the very first request would be slower than the second one. I'm not sure how good JMeter emulates "opening a fresh browser window" when you "start test". Just in case: 1) I do not think removing "SSL cache" is an option, since it is expected that good apps would use SSL session caching. 2) I do not think invalidating SSL cache on each iteration is good (same reasons as in 1) 3) I do not think caching SSL forever and moving the initialization out of the measurement loop is good either: if real app executes just one request, they would face the same SSL startup cost. Frankly speaking, I have no clear answer how to approach all this, however, I could imagine: a) Adding an option like "poorman's warmup" where JMeter discards a couple of first iterations if there's more than one measurement. For instance, if there are two or three measurements, then JMeter could exclude the first (or two) from the report stats b) Adding something like "exclude first N seconds" or "exclude first N%" when computing the stats. This should let JMeter and the system under test to warm up a bit. However, in my experience, there were cases when 30min warmup load was needed. c) Adding something like "session management" where different threads could use the same session. For instance, like in a real application, there might be a shared "database connection pool", and app threads use the connections from the pool. The same might be workable for JMeter as well: there might be "HTTPS connection pool to the system under test", and JMeter threads could use it to send requests like the typical app would do using HttpClients. WDYT? -- You are receiving this mail because: You are the assignee for the bug.
