Search found 1526 matches

by raboof
Fri Jan 11, 2019 9:52 am
Forum: System Tuning and Configuration
Topic: cyclictest
Replies: 19
Views: 684

Re: cyclictest

It's CPU1 (the green line) that's letting the side down. :) The other three CPUs have a really good maximum latency -- around 50 microseconds. That's 0.05 milliseconds. It's interesting that CPU1 is so much worse than the others. Makes you wonder if there's anything tied to CPU1. If there's somethi...
by raboof
Wed Jan 09, 2019 11:51 am
Forum: System Tuning and Configuration
Topic: One month and counting without RT kernel on Arch Linux
Replies: 23
Views: 634

Re: One month and counting without RT kernel on Arch Linux

I remember manually stripping down the kernel configuration because my machine had only 4mb of RAM instead of the then-recommended 8mb... I don't think I've bothered with it since :D
by raboof
Wed Jan 02, 2019 10:19 pm
Forum: System Tuning and Configuration
Topic: Standard test needed to benchmark XRUNs
Replies: 51
Views: 1909

Re: Standard test needed to benchmark XRUNs

How do you benchmark that you get better performance when using ALSA directly? For a single audio source, using ALSA directly should give better results. There's a whole chunk of RT processing taken out of the audio chain. That is of course undeniably true. On the other hand it is not entirely obvi...
by raboof
Wed Jan 02, 2019 8:19 pm
Forum: Suggestion Box
Topic: Wiki update
Replies: 41
Views: 3368

Re: Wiki update

I'll take it out completely. As stated somewhere else this is also better for SSD on the long-term. I don't understand how it could have anything to do with your SSD. I suspect what lilith means is if you use RAM-backed storage instead of Disk-backed storage, that might reduce wear and tear on your...
by raboof
Wed Jan 02, 2019 5:30 pm
Forum: Suggestion Box
Topic: Wiki update
Replies: 41
Views: 3368

Re: Wiki update

If I don't have any entry in fstab it is still used as it is in the kernel by default? Can this be checked somehow? You can check with "mount | grep shm" to see if /dev/shm is available. I'm not sure if JACK tells you whether it is actually using it, but if it's available then it should. ...
by raboof
Wed Jan 02, 2019 2:28 pm
Forum: System Tuning and Configuration
Topic: Standard test needed to benchmark XRUNs
Replies: 51
Views: 1909

Re: Standard test needed to benchmark XRUNs

You are using 3 periods instead of 2. Ah right, yes, that is definitely a factor that makes an enormous difference. With 2 periods per buffer, indeed I get much lower numbers: jackd 0.125.0rc1 Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn and others. jackd comes with ABSO...
by raboof
Wed Jan 02, 2019 11:59 am
Forum: System Tuning and Configuration
Topic: Live mixing with Linux - State of the art 2018
Replies: 96
Views: 3898

Re: Live mixing with Linux - State of the art 2018

At 32 and 64 samples I get (a lot of) clicks and pops on both Win10 and Linux. The only difference between Win10 and Linux is that the performance meter of Reaper reports xruns in Linux and no xrun at all in Win10. Too bad we did not succeed in 'beating' Win10 in this case, but good that we are at ...
by raboof
Wed Jan 02, 2019 8:44 am
Forum: System Tuning and Configuration
Topic: Log xruns from command line?
Replies: 7
Views: 3920

Re: Log xruns from command line?

tramp wrote:. . or write a little app witch counts the xruns.

This is pretty neat, perhaps we should share it on github or so for easier collaboration/evolution?
by raboof
Wed Jan 02, 2019 8:42 am
Forum: System Tuning and Configuration
Topic: Standard test needed to benchmark XRUNs
Replies: 51
Views: 1909

Re: Standard test needed to benchmark XRUNs

I guess the Zoom is a USB interface that uses isochronous asynchronous audio endpoints. Due to the broken design of jack and all major DAWs, even when using alsa (= allowing only fixed size buffers), this cannot work with such devices. I have two USB2 devices: a JD-Xi and a Motu 16A. Both use isoch...
by raboof
Mon Dec 31, 2018 4:37 pm
Forum: Suggestion Box
Topic: Wiki update
Replies: 41
Views: 3368

Re: Wiki update

As far as I remember you had both entries ("shm/tmpfs") in /etc/fstab and later removed the "tmpfs" entry. If so: Logical because the script searches for "tmpfs" and you only entered "shm". Only adding the "shm" entry is correct . According to jack ...
by raboof
Mon Dec 31, 2018 1:29 pm
Forum: System Tuning and Configuration
Topic: Standard test needed to benchmark XRUNs
Replies: 51
Views: 1909

Re: Standard test needed to benchmark XRUNs

I guess the Zoom is a USB interface that uses isochronous asynchronous audio endpoints. Due to the broken design of jack and all major DAWs, even when using alsa (= allowing only fixed size buffers), this cannot work with such devices. The irony. Alsa actually provides the real (variable) number of...
by raboof
Mon Dec 31, 2018 1:10 pm
Forum: Suggestion Box
Topic: Wiki update
Replies: 41
Views: 3368

Re: Wiki update

Is it safe to delete the reatimeconfig directory Yes, that should be safe wonder why it's root root You probably (accidentally) were root when you first got it. Was there any important change? There were a couple of neat improvements, but nothing very big. See https://github.com/raboof/realtimeconf...
by raboof
Sun Dec 30, 2018 12:23 pm
Forum: Running non-linux software
Topic: Why run Windows software on Linux?
Replies: 75
Views: 2272

Re: Why run Windows software on Linux?

Wait… Presets? Are you serious? I know virtually no engineers who use them, even with synths. Skill is far more important than “training wheels” for wannabe producers. Elitistic attitude. For example my case. Busy with work and family, started learning from zero. Picked up guitar first time of my l...
by raboof
Sun Dec 30, 2018 12:15 pm
Forum: Running non-linux software
Topic: Why run Windows software on Linux?
Replies: 75
Views: 2272

Re: Why run Windows software on Linux?

glowrak guy wrote:
jonetsu wrote:At least for now I can make my own kvass (1) so I have something to drink during all those exciting coming years.

That reminds me, I forgot to add the rosewood, koa, and spruce trees to my orchard :shock:

Would you like some toast?

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