Dragonfly Hall high CPU usage

[Michael Willis]

(04-17-2020, 12:37 PM)Mattias Westlund Wrote: Inserting a white noise generator plugin set to -100dB before Dragonfly Hall effectively prevents the bug from happening.

WHAT? That's bonkers! At some point I really want to investigate this further, otherwise I might forever be annoyed knowing that the bug still exists. I guess the quick fix would be to build in a -100dB white noise generator, that's only a few lines of code to add tiny random numbers to the input signal.

Mattias, elsewhere you have described yourself as a "tinkerer". I had no clue how much you meant it until now.

[Mattias Westlund]

(04-17-2020, 04:00 PM)Michael Willis Wrote: Mattias, elsewhere you have described yourself as a "tinkerer". I had no clue how much you meant it until now.

Well, it's not as far-fetched as it might seem. The CPU rises when the plugins stop receiving an input signal, so I thought to myself... what if there's a constant input signal?

[Michael Willis]

Mattias, please try version 3.2.0. I have made a few changes to optimize CPU usage, but I'm not sure if any of them address the bug we discussed in this thread.

[Mattias Westlund]

Thanks for the heads up Michael, I'll check it out ASAP!

[Mattias Westlund]

Just so you know, the Win x64 zip file contains two sets of binaries. One in the root of the archive with a date code of 2020-06-30 12:29, and another set in a "bin" subfolder with a date of 2020-06-30 12:47

[Michael Willis]

(07-01-2020, 02:11 PM)Mattias Westlund Wrote: Just so you know, the Win x64 zip file contains two sets of binaries. One in the root of the archive with a date code of 2020-06-30 12:29, and another set in a "bin" subfolder with a date of 2020-06-30 12:47

Haha, thanks. I made a mistake during the release. You want the one in the subfolder, I'll fix the release today.

Edit: It's fixed now.

[Mattias Westlund]

Sadly, the bug remains. I disabled the white noise generators, stopped playback and waited for a minute, and CPU usage started soaring. Only difference is that it happens only to two of the three instances. The first two rises to upwards of 11%, the third one weirdly went down to like 0.07% and remained there (?!)

[Michael Willis]

In the Ardour forums somebody reported that Dragonfly Room Reverb caused a high decibel blast of noise, and then several other people corroborated that they occasionally experience the same problem. Does this ever happen to anybody here?

[Mattias Westlund]

Nope, never encountered that. Just the CPU munching bug.

[Michael Willis]

Thanks, Mattias. Do you ever use the Room plugin, or just the Hall one?