http://blog.timbunce.org/2008/07/12/devel-dprof-broken-by-the-passage-of-time/ Listen. Reflect. Explore. Solve. Sun, 14 Apr 2013 08:36:20 +0000 hourly 1 http://wordpress.com/ http://blog.timbunce.org/2008/07/12/devel-dprof-broken-by-the-passage-of-time/#comment-3042 Tue, 09 Apr 2013 09:56:41 +0000 http://timbunce.wordpress.com/?p=48#comment-3042 [...] one thing the old and deeply flawed Devel::DProf profiler can do that NYTProf hasn’t been able to: the DProf dprofpp utility can [...]

]]> http://blog.timbunce.org/2008/07/12/devel-dprof-broken-by-the-passage-of-time/#comment-381 Tue, 28 Oct 2008 09:39:03 +0000 http://timbunce.wordpress.com/?p=48#comment-381 [...] http://blog.timbunce.org/2008/07/12/devel-dprof-broken-by-the-passage-of-time/ [...]

]]> http://blog.timbunce.org/2008/07/12/devel-dprof-broken-by-the-passage-of-time/#comment-364 Wed, 08 Oct 2008 23:37:47 +0000 http://timbunce.wordpress.com/?p=48#comment-364 [...] there’s a trade-off: the accuracy of the timings drops significantly. Still far better than Devel::DProf, but far worse than normal. You’re dependent on how often the cached time value gets updated [...]

]]> http://blog.timbunce.org/2008/07/12/devel-dprof-broken-by-the-passage-of-time/#comment-346 Fri, 03 Oct 2008 11:55:02 +0000 http://timbunce.wordpress.com/?p=48#comment-346 [...] NYTProf 2.04 gives you 90% smaller data files Filed under: perl — TimBunce @ 11:15 am Tags: graphs, nytprof, performance, video At OSCON this year I gave a talk on my new pet project Devel::NYTProf v2 to a packed room. Turned out to be a lot of fun. “The first thing I need to do is talk about Devel::DProf because it needs to be taken out and shot.” [...]

]]> http://blog.timbunce.org/2008/07/12/devel-dprof-broken-by-the-passage-of-time/#comment-253 Wed, 16 Jul 2008 21:58:27 +0000 http://timbunce.wordpress.com/?p=48#comment-253 [...] DProf seems easily confused by unusual control flow, spewing “… has unstacked calls” warnings. Also, the subroutines it said were taking the most time didn’t make sense to me. Eventually I worked out that Devel::DProf is effectively broken. [...]

]]> http://blog.timbunce.org/2008/07/12/devel-dprof-broken-by-the-passage-of-time/#comment-244 Sun, 13 Jul 2008 00:58:48 +0000 http://timbunce.wordpress.com/?p=48#comment-244 Thanks for the insight into Devel::Dprof. I’ve always wondered how accurate those numbers are any myself prefer wallclock for the exact same reasons (other system problems that may be big red flags)

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