#general
- w
witty-crayon-22786
09/08/2015, 5:05 PMer, this isn't in nailgun - w
witty-crayon-22786
09/08/2015, 5:05 PMit's in zinc - w
witty-crayon-22786
09/08/2015, 5:05 PM(running in nailgun) - b
bored-art-40741
09/08/2015, 5:05 PMI know, I'm trying to attach a profiler to the nailgun though - w
witty-crayon-22786
09/08/2015, 5:05 PMah - b
bored-art-40741
09/08/2015, 5:07 PMUnfortunately it's not clear to me how yourkit and zinc interact - b
bored-art-40741
09/08/2015, 5:07 PMerr - b
bored-art-40741
09/08/2015, 5:07 PMyourkit and nailgun, rather - b
bored-art-40741
09/08/2015, 5:07 PMAnd doing this in a nailgun is kind of critical for perf - b
bored-art-40741
09/08/2015, 5:08 PMThoughI suppose eliminating the nailgun (and therefore the associated memory context) as the source of slowness would also be useful - w
witty-crayon-22786
09/08/2015, 5:08 PMi can just connect with jvisualvm - w
witty-crayon-22786
09/08/2015, 5:09 PMso i don't know what you'd need to do for yourkit, but it's probably just "connect to this jvm pid" - b
bored-art-40741
09/08/2015, 5:09 PMYeah, I can do that as well, and I have done so - b
bored-art-40741
09/08/2015, 5:09 PMBut it causes a re-JIT and is generally super slow - w
witty-crayon-22786
09/08/2015, 5:09 PMhm. - b
bored-art-40741
09/08/2015, 5:09 PMProbably fine though - w
witty-crayon-22786
09/08/2015, 5:09 PMi had some success with hprof, but you need to kill nailgun after the build to get it to dump the profile - w
witty-crayon-22786
09/08/2015, 5:10 PMi think as long as you use a sampling rather than tracing profiler, you shouldn't affect performance by more than 10% or so - b
bored-art-40741
09/08/2015, 5:13 PMAha, I managed to get the agent loaded on startup! - b
bored-art-40741
09/08/2015, 5:13 PMPutting it in the zinc jvm_options worked - b
bored-art-40741
09/08/2015, 5:14 PMOkay, profiler is chugging along - w
witty-crayon-22786
09/08/2015, 5:14 PMit will cover the lifetime of the nailgun - b
bored-art-40741
09/08/2015, 5:15 PMBecause the nailgun is fingerprinted on jvm options? - w
witty-crayon-22786
09/08/2015, 5:15 PMwhich is probably fine. just need to kill nailgun afterward - w
witty-crayon-22786
09/08/2015, 5:15 PMyea - b
bored-art-40741
09/08/2015, 5:15 PMYeah, we auto-kill on exit anyway - w
witty-crayon-22786
09/08/2015, 5:15 PMoh yea? - w
witty-crayon-22786
09/08/2015, 5:15 PMinteresting. - w
witty-crayon-22786
09/08/2015, 5:15 PMer - b
bored-art-40741
09/08/2015, 5:15 PMLegacy behavior from when nailgun fingerprinting wasn't as reliable