----- Original Message ----- From: <RonKuper@xxxxxxxxxxxx> To: <gmpi@xxxxxxxxxxxxx> Sent: Tuesday, June 03, 2003 2:40 PM Subject: [gmpi] Re: Topic 7: Audio packaging > for exemple : "on a average montage 24 tracks , 150 clips, we have inserted > 24 EQ+Compressor on console and other 40 special Fx on some clips. With the > "IsZero" opimization we have been able to insert 10 other plug-ins without > getting trouble. But we finnally get trouble after moving 20 clips on the > timeline". So Why Ron does not said it !? just because he didn't measure > something in real situation. > <<< > > Are you calling me a liar? I don't know you enough to say that. but i can say that you don't give good argument and nobody bother you or ask you for further information. and you confirm below that i'm saying , you simply did not a test in a situation which concerns plug-ins. > First of all, the usage case you described is not what I was benchmarking > when I saw performance bottlenecks. My usage case was simply a bunch of > audio tracks, with a the same amount of "blank space" between audio clips as > you would expect in any real-world project that had been edited a while. No > effects were present in ths project; my goal was to simply benchmark the > performance of our mixing code. > In this test case, running under VTune, I saw performance "hotspots" in the > zero fill code. In other words, we were zerofilling excessively, and it was > showing up in the CPU overhead. zero fill code is may be the fastest operation we can do , so i remind me what you could requiere for other kind of more complicated operation ! :-) > An IsZero optimization will not give the kinds of gains as in your example. > But it will give some gains, and it is optional, and since this discussion > is about *requirements*, my stake in the ground is, "I require this." hum hum, i'm still saying that "this" does not concern plug-in, and is usefull only for some few host , which certaineley aren't stucturally optimized. Vincent Burel ---------------------------------------------------------------------- Generalized Music Plugin Interface (GMPI) public discussion list Participation in this list is contingent upon your abiding by the following rules: Please stay on topic. You are responsible for your own words. Please respect your fellow subscribers. Please do not redistribute anyone else's words without their permission. Archive: //www.freelists.org/archives/gmpi Email gmpi-request@xxxxxxxxxxxxx w/ subject "unsubscribe" to unsubscribe