Bitwig

TeotiGraphix · Post by **TeotiGraphix** » Fri Aug 17, 2018 4:18 pm

Been playing around with LatencyMon a bit and it's "Wdf01000.sys" that is causing the issue. After opening 2.4 beta 2 it gradually produces more and more ISRs and the highest execution time massively increases, until I'm getting like 500ms+ system interrupts.

Yeah, that is what it ha felt like, a memory leak or some type of processing that is exponentially growing.

I have noticed this affects the operating system, so yeah it must be some low level thing.

I know this started when I was testing, then some version it started and has been consistent ever since.

Yokai · Post by **Yokai** » Sat Aug 18, 2018 12:06 am

Can't duplicate on my Windows 10 system. Also have Audient iD-14 running the latest 4.0 drivers, also have an Nvidia graphics card (1060).

Maybe the difference is I have "high performance" power plan active when Bitwig is running?

Hez · Post by **Hez** » Sat Aug 18, 2018 8:48 am

Yokai wrote:Can't duplicate on my Windows 10 system. Also have Audient iD-14 running the latest 4.0 drivers, also have an Nvidia graphics card (1060).

Maybe the difference is I have "high performance" power plan active when Bitwig is running?

Cheers for the idea but yea I've always had this box on high performance mode, including deactivating USB sleep options etc.

How long are you leaving the projects open when testing this? It takes about 2 hours for it to get very noticeable on my system.

TeotiGraphix · Post by **TeotiGraphix** » Sat Aug 18, 2018 5:16 pm

Hez wrote:
Yokai wrote:Can't duplicate on my Windows 10 system. Also have Audient iD-14 running the latest 4.0 drivers, also have an Nvidia graphics card (1060).

Maybe the difference is I have "high performance" power plan active when Bitwig is running?
Cheers for the idea but yea I've always had this box on high performance mode, including deactivating USB sleep options etc.

How long are you leaving the projects open when testing this? It takes about 2 hours for it to get very noticeable on my system.

Same here, exact same way, it's a buildup then almost crashing the PC.

Hez · Post by **Hez** » Sat Aug 18, 2018 5:38 pm

Interesting - I did two things earlier, reinstalled my mouse driver/software (I've got a Perixx gaming mouse), and noticed in the options that it had a very high polling rate (1000Hz). I've reduced that to 125Hz, the lowest it'll go.

I also opened Bitwig and left it on the splash screen for a few hours while doing something else - there's a new blank project open in the background, but I didn't click off the splash screen.

So far the mouse lockup issue doesn't seem to be occurring, at least not as significantly as before.

Need to experiment more to find out whether it was reducing the mouse polling rate or something to do with not closing the splash screen, but promising progress...

Yokai · Post by **Yokai** » Sun Aug 19, 2018 4:35 am

Last night I even tried leaving 2.4b2 open all night, with the audio engine engaged, while I slept. Also left Discord app open, and a Vivaldi browser with about 6 tabs including a Facebook tab. Also left Windows task manager and performance monitor running.

Next morning I turned on my monitors and moved the mouse and no crackles. Only moderate activity on the CPU cores.

FWIW I use a Logitech trackball with the latest Logitech drivers and config software.

Hez · Post by **Hez** » Sun Aug 19, 2018 9:52 pm

Yokai wrote:Last night I even tried leaving 2.4b2 open all night, with the audio engine engaged, while I slept. Also left Discord app open, and a Vivaldi browser with about 6 tabs including a Facebook tab. Also left Windows task manager and performance monitor running.

Next morning I turned on my monitors and moved the mouse and no crackles. Only moderate activity on the CPU cores.

FWIW I use a Logitech trackball with the latest Logitech drivers and config software.

Interesting, thanks for testing

So the issue seems to have disappeared for me. I'm not sure if it was reinstalling my mouse drivers, or a big Windows update that I finally managed to get to work yesterday (I had some issue beforehand where my main Windows disk was MBR rather than GPT so Windows kept downloading and failing on one update).

I'll continue to test and see if I can 'retrigger' the issue, but if anyone else still has problems I'd suggest maybe looking into those two variables. I still think Bitwig is doing something weird, as no other software was causing those lockups (including older Bitwig versions) but yeah I seem to have found a way around it for now...

TeotiGraphix · Post by **TeotiGraphix** » Mon Aug 20, 2018 3:03 pm

Hez wrote:
Yokai wrote:Last night I even tried leaving 2.4b2 open all night, with the audio engine engaged, while I slept. Also left Discord app open, and a Vivaldi browser with about 6 tabs including a Facebook tab. Also left Windows task manager and performance monitor running.

Next morning I turned on my monitors and moved the mouse and no crackles. Only moderate activity on the CPU cores.

FWIW I use a Logitech trackball with the latest Logitech drivers and config software.
Interesting, thanks for testing

So the issue seems to have disappeared for me. I'm not sure if it was reinstalling my mouse drivers, or a big Windows update that I finally managed to get to work yesterday (I had some issue beforehand where my main Windows disk was MBR rather than GPT so Windows kept downloading and failing on one update).

I'll continue to test and see if I can 'retrigger' the issue, but if anyone else still has problems I'd suggest maybe looking into those two variables. I still think Bitwig is doing something weird, as no other software was causing those lockups (including older Bitwig versions) but yeah I seem to have found a way around it for now...

After reading this I think I saw a similarity but maybe just a coincedence.

I updated Windows (auto, usually stay up on them) the other day. I hadn't been into Bitwig for a couple days. After this update, today I left it open and had everything else running WASAPI etc.

... As of now, no sign of meltdown. I will leave it open all day.

If it still works fine, the only thing on my system that changed in the last two days was the Windows update.

Mike

TeotiGraphix · Post by **TeotiGraphix** » Mon Aug 20, 2018 3:08 pm

https://support.microsoft.com/en-us/hel ... -kb4343909

This is the update and it says in a bullet point;

August 14, 2018—KB4343909 (OS Build 17134.228)

Addresses an issue that causes high CPU usage that results in performance degradation on some systems with Family 15h and 16h AMD processors. This issue occurs after installing the June 2018 or July 2018 Windows updates from Microsoft and the AMD microcode updates that address Spectre Variant 2 (CVE-2017-5715 – Branch Target Injection).

Don't know if that is related but fishy it's there and this problem went away, hopefully.

Mike (my processor is AMD)

TeotiGraphix · Post by **TeotiGraphix** » Mon Aug 20, 2018 5:38 pm

Scratch what I said in the above 2 posts.

This has to be a GPU problem, seriously has to be a GPU problem.

I have had Bitwig open since the last post and it's almost 4 hours later and programs that use the GPU are locking up sporadically for milliseconds to a second, Bitwig audio is dropping, Youtube starts hanging etc etc.

............. And yes, I instantly close Bitwig and run a 3D modeler program that uses both of my GTX 1080s, screen is mega fast pan rotate again.

Note the 3D editor was open with an empty project while Bitwig was open and doing this. Right when I closed Bitwig, 1 second later panned and rotated perfectly whereas before it was glitching just trying to rotate and empty scene.

Hanz Meyzer · Post by **Hanz Meyzer** » Tue Aug 21, 2018 2:42 pm

Bitwig doesn't use the GPU at all.

TeotiGraphix · Post by **TeotiGraphix** » Tue Aug 21, 2018 2:57 pm

Hanz Meyzer wrote:Bitwig doesn't use the GPU at all.

Yeah I know, but what is Bitwig tied to that put my dual 1080s and CPU to it's knees?

How can I run a program that uses my 2 graphics cards, locks and then shut bitwig and the GPUs are not fried anymore.

I know exactly when this issue started and Bitwig does too, it was a release of Bitwig that introduced this conflict.

Hez · Post by **Hez** » Thu Aug 23, 2018 8:18 am

I still haven't managed to reproduce this issue since updating Windows + mouse drivers! Sorry Mike, that's now one less reference point to help you test unfortunately : (

I'll keep experimenting though and see whether it returns at any point.

cyanit · Post by **cyanit** » Fri Aug 24, 2018 10:37 am

This is a problem that I've got since I have my pc, across any Software. Ableton, Chrome, Games, FL Studio, Reason... The audio interface (NI KA6) reduced it, but its still there.
Changed cables, audio interface (None/KA6), maybe it's the amp for my speakers. Who knows. Dosent happen on headphones, but if I use the headphone port -> amp, so its introduced somewhere else through interference.

So maybe there isn't “one“ reason. It just happens (because of different reasons) and some programms seem to amplify it.

Bitwig

KVR Audio

Audio crackling due to mouse movement in 2.4b1