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ungov | Hi! How hard is it to recompile the kernel? According to Cadence, I have the generic kernel, and I'd like to use my system to add effects to my bass guitar signal, so I believe I should probably use the low latency or the real time version. Is that right? | 18:48 |
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holstein | ungov: there are many kernels in the sources | 18:50 |
falktx | sudo apt-get install linux-lowlatency # for ubuntu | 18:50 |
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holstein | ungov: i suggest, just use the kernel you have, and go from there, *if* you need lower latency | 18:50 |
falktx | recompiling a kernel is no easy task | 18:50 |
falktx | I don't even do it myself | 18:50 |
holstein | linux-lowlatency is included, as falktx states | 18:50 |
JackWinter | falktx: actually what is so difficult with kernels in debian? don't you just "apt-get source linux" modify the script and then build it? | 18:58 |
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spectromas | falktx: is there somewhere I can grab the source for tal plugins? | 19:07 |
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falktx | JackWinter: building kernels is the "easy" part. the complex thing is create debs for it | 19:25 |
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falktx | spectromas: https://github.com/DISTRHO/DISTRHO-Ports see ports/tal-* | 19:25 |
spectromas | thanks falktx | 19:27 |
JackWinter | falktx: ok, i'll take your word for it :) | 19:28 |
falktx | JackWinter: the main thing is that is something that takes a lot of time | 19:28 |
falktx | JackWinter: plus the frequent updates... | 19:29 |
JackWinter | yeah, it takes times for sure. i build on a tmps, so wine and the kernel aren't all that bad. | 19:30 |
JackWinter | i am building kernels for hours already for archlinux, updating linux-rt and linux-rt-lts and testing | 19:30 |
JackWinter | them | 19:31 |
spectromas | JackWinter: how does the arch rt kernel compare to debian, module and config wise? | 19:32 |
spectromas | must still be pretty big | 19:33 |
JackWinter | spectromas: i have no idea what debian does anymore. i base mine on archlinux default kernel config. apply the patch and change a few config options for rt. then i just build it same as i would the default kernel | 19:33 |
JackWinter | vmlinuz-linux-rt is 4.2mb | 19:34 |
JackWinter | the modules dir for 3.18-rt is about 160mb. | 19:36 |
spectromas | that's painful compiling all that | 19:36 |
JackWinter | that's 10mb up from 3.14-rt | 19:36 |
JackWinter | i build with SCHED_IDLE so it just builds in the background, i can play games or work on my audio at the same time without ill effects :) | 19:37 |
JackWinter | but building on a ramdisk is nice when you have to build big or many packages | 19:38 |
spectromas | JackWinter: how do you set SCHED_IDLE, not come across that before? | 19:40 |
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JackWinter | sudo chrt -i 0 executable | 19:57 |
JackWinter | actually you can do it without the sudo too, if the system is configured right | 19:58 |
spectromas | thanks JackWinter | 20:03 |
JackWinter | spectromas: or chrt -f -p 90 command | 20:05 |
JackWinter | to run it sched_fifo | 20:05 |
JackWinter | there is also the schedtool command | 20:06 |
spectromas | cheers JackWinter, definitely will be giving this a try next time have something big | 20:11 |
spectromas | falktx: does tal filter (1) have a runtime dependency? It still doesn't do anything for me, just compiled it against whatever is in my system, and still no filter whatsoever | 20:15 |
spectromas | all the other tal plugins work fine | 20:15 |
falktx | it needs something to be done first... | 20:15 |
falktx | spectromas: try some of its presets | 20:16 |
falktx | I think some of the filter functions depend on the host tempo | 20:16 |
spectromas | falktx: yeah I have tried that, they gain changes slightly between them but no filtering. The input gain works and volume knobs work but nothing else | 20:17 |
spectromas | it's weird, filter 2 works | 20:17 |
falktx | I remember having it working | 20:17 |
falktx | which host? | 20:18 |
spectromas | first vst in renoise but I'm just using carla now | 20:18 |
spectromas | lv2 | 20:18 |
falktx | the vst is usually safer for tests | 20:18 |
spectromas | ok I'll build that | 20:19 |
spectromas | yeah nothing :/ | 20:23 |
falktx | ping me about this next week | 20:24 |
falktx | I don't have much time to check on this right now | 20:25 |
spectromas | ok will do, thanks falktx | 20:25 |
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daeavelwyn | could it have advantage, improving audio stuff, of using chrt with cadence ? | 23:59 |
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