Re: Slow performance of adding MIDI Events to MusicTrack?
Re: Slow performance of adding MIDI Events to MusicTrack?
- Subject: Re: Slow performance of adding MIDI Events to MusicTrack?
- From: Simone Tellini <email@hidden>
- Date: Tue, 08 Dec 2009 15:59:16 +0100
NickK ha scritto:
I've sampled the application running and it spends 100% of it's time within std::vector operations - iterator and copy. So I'm assuming it adds the event by iterating through the entire current set until it finds the correct timestamp location and then makes a gap my copying the data before inserting it.
It seems a little barking mad for Apple to use a linear search routine and I would suspect a hashed based dense key storage system would have been better? This would slow down with more additions!
Is this a known issue that others have experienced?
yes, I've noticed the same thing.
Luckily, I've never had to add that many events/notes, so I could bear
to wait for some seconds.
--
Simone Tellini
http://www.tellini.org
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