I was at devopsdownunder last weekend and saw a demo of a very interesting tool. Have a look at http://rpm.newrelic.com/v2/accounts/12842/applications/113766 - ignoring the bling, its a tool for individual and aggregated statistics on *every single request* going through an application stack.
Kind of what we get with oops reports (database time, python time) but pervasive rather than only-on-the-broken-requests. I think one of the challenges with performance work at the moment - and please, correct me if I'm wrong - is that individual developers can't easily, routinely see where things are at. Right now, when someone asks 'why is xxx slow', the best we can do is: - add ++oops++ to the url to trigger an oops - wait 3 +- 3 minutes for it to sync - look it up on the oops website This has two issues: - we can't see if its *usual* for that page to be slow, or if its unusually slow for one individual. - its slow and cumbersome. For instance, if we want 100ms page generation, it would be terribly useful to be able to see that right now, on average, we're spending (say) 60ms in the database. Now, I'm not suggesting we go out and invent such a dashboard itself - there's going to be a tonne of investment needed to do that, but perhaps there is an open source version of this out there already for zope apps? Or perhaps we could look at providing a zope plugin to talk to newrelic? A couple of reports to close with: - slow requests http://rpm.newrelic.com/v2/accounts/12842/applications/113766/transactions#sort_by=slowest - what makes one in particular slow http://rpm.newrelic.com/v2/accounts/12842/applications/113766/transactions#id=8812069&sort_by=slowest The last one is essentially one of our oops, but shinier (which doesn't matter to me) -Rob _______________________________________________ Mailing list: https://launchpad.net/~launchpad-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~launchpad-dev More help : https://help.launchpad.net/ListHelp
