| Iamthehuman1 | Any news on when we can begin testing 22.04? I mean that an release candidate or beta .iso comes out | 14:03 |
|---|---|---|
| OvenWerks | Iamthehuman1: feature freeze is end of the month. ( Eickmeyer 27th?) so testing should be possible from then. | 15:05 |
| OvenWerks | Iamthehuman1: I installed 22.04 about a month ago and am using it as my daily drive so it is solid enough from what I can tell. | 15:06 |
| mrz80 | Cool | 15:40 |
| OvenWerks | there can be a lot of daily updates still... 239 this morning | 15:45 |
| Eickmeyer | OvenWerks, Iamthehuman1: Feature Freeze is the 24th. | 17:05 |
| OvenWerks | Eickmeyer: 7 and 4 kinda look the same ;) | 17:06 |
| Eickmeyer | Heh | 17:07 |
| mrz80 | Looking forward to new-and-improved :D I've been having the time of my life the last few weeks, settling new gear into the home studio and trying to beat my XRUN monster of a decrpit old machine into glitch-free shape :) | 17:11 |
| mrz80 | Jacked my cpu from 2.someething 6 core to a 4GHz 8 core, upped the memory from 12 to 16, went all-SSD at long last. | 17:12 |
| mrz80 | Made a major breakthru a week or so ago when someone suggested making sure the USB audio adapter was on a bus/controller all by itself. That eliminated abou 80% of the XRUNs | 17:13 |
| OvenWerks | Stability is hard and often not very intuitive | 17:19 |
| OvenWerks | For example, I have found better stability with the cpu running at .8Ghz than set to 3.*Ghz if ondemand or power save is running. | 17:21 |
| mrz80 | One problem I have is that I can't just dedicate the machine to music. It's also my ham shack computer and my work-from-home machine, so things like Internet access and near constant presence of a VPN client are just givens. | 17:21 |
| OvenWerks | intel's boost can cause xruns as well. basically any cpu speed change (particularly in the diown direction) can cause xruns | 17:22 |
| mrz80 | This is an AMD FX8350. I recently did a headache-inducing deep-dive into the FX architecture when I was looking at options for upgrading my wife's PC, and I wonder if the FX's oddball internal architecture is maybe causing me some heartache. | 17:23 |
| mrz80 | It's got some pretty sincere bottlenecks owing to the way pairs of cores share significant slices of silicon. | 17:23 |
| OvenWerks | more than one thread per core would seem to help (130% "performance") but I have found in the past that it gives xruns below a certain latency setting. | 17:23 |
| mrz80 | That's a big thing; I ether have to jack the buffering up to "latency is painful" or dial it down to "peformanace is acceptable but the glitches from XRUNS are a semi constant headache :( | 17:25 |
| OvenWerks | Things like auto software updates can cause xruns. If I am doing serious recording I will stop cron | 17:25 |
| mrz80 | If I'm recording ore reharsing stuff I shut down the VPN and kill anything I can find that's not in use (things like Slack, Zoom, email, etc) | 17:26 |
| mrz80 | Still get hiccups. According to HTOP, the machine DOES spend a lot of time in the Xserver, which I attribute to my ancient GT730 :D | 17:26 |
| OvenWerks | I have been able to run this firewire audio with jack set to 16/2 for over 48 hours with no xruns. | 17:26 |
| OvenWerks | thats with an i5 (4 cores, 4 threads) at 3.2Ghz. That is still having a browser open and watching youtube stuff. | 17:28 |
| OvenWerks | FW is on it's own PCIe card (something I would recomend for USB devices too) with the irq prioritized | 17:30 |
| MoonsofMoons[m] | <OvenWerks> "I have been able to run this..." <- That's nuts! Awesome | 17:31 |
| MoonsofMoons[m] | I get xruns if I think too hard about setting my buffer to 16.. | 17:32 |
| OvenWerks | I have found it hard on newer motherboards to get an audio device (or any usb port) on a separate irq without installing an extra PICe USB card. USB3.0 should be able to make this better as it is basically an extended PCI connector | 17:32 |
| OvenWerks | USB devices will never run at 16/2 because they cycle at 1ms | 17:33 |
| OvenWerks | this means at 48000 16/3 would be the lowest it would work at all (with xruns) | 17:34 |
| OvenWerks | for usb devices 32/* is the practical minimum | 17:34 |
| MoonsofMoons[m] | Unfortunately my main machine cannot accept extra cards. It's a small Lenovo Thinkcentre | 17:35 |
| OvenWerks | With the cheap ones I have for testing... 64/2 works ok :) | 17:35 |
| MoonsofMoons[m] | OvenWerks: That's a pretty inperceptable delay anyhow | 17:36 |
| OvenWerks | I can understand that, that is part of having a laptop | 17:36 |
| MoonsofMoons[m] | It's a 'desktop' but one of those little things designed to mount behind a TV, etc | 17:36 |
| OvenWerks | Ah, same thing really. | 17:37 |
| MoonsofMoons[m] | Yeah. The MOBO is probably based off laptop tech | 17:37 |
| OvenWerks | mostly as things get smaller, cooling becomes the limiting factor | 17:38 |
| MoonsofMoons[m] | It performs well enough. Older i3 with 16GB RAM. I run 128/2 and only get xruns when running a lot of yabridge VSTs | 17:40 |
| OvenWerks | sounds pretty good then. | 17:41 |
| MoonsofMoons[m] | Yeah. Works for my needs | 17:42 |
| mrz80 | Alas, I've never gotten my machine to recognize and use my firewire interface. | 18:08 |
| mrz80 | I can't get below 256/3 without xruns becoming near constant. It's aggravating. | 18:09 |
| OvenWerks | I do have to use the ffado jack backend. If I use the ALSA back end for my FW device I have to run at 1024/2 | 18:13 |
| MoonsofMoons[m] | <mrz80> "I can't get below 256/3 without..." <- This could be something pipewire fixes. You could try running live install of a distro that uses PW by default to test out performance | 18:25 |
| MoonsofMoons[m] | * This could be something pipewire fixes. You could try running live session of a distro that uses PW by default to test out performance | 18:25 |
| OvenWerks | PW possibly as an option in 22.10 or 23.04 | 18:29 |
| OvenWerks | but PW does not load the ffado backend. It is ALSA only, so not a fix in this case | 18:30 |
| OvenWerks | (ALSA fw drivers are not usable really) | 18:31 |
| mrz80 | Current backports of US installed Pipewire some time ago | 18:36 |
| OvenWerks | mrz80: yes but the controlability for use as a jack server is lacking | 18:36 |
| OvenWerks | getting pw to use jack as a device or act as desktop with bridging to jack is not easy | 18:37 |
| MoonsofMoons[m] | <OvenWerks> "but PW does not load the ffado..." <- ffado is a kernel level ALSA alternative? | 18:46 |
| OvenWerks | Sort of. | 18:47 |
| OvenWerks | Actually I am not sure | 18:47 |
| OvenWerks | it may be a userland backend for jack that uses the kernels raw fw if | 18:47 |
| MoonsofMoons[m] | Interesting | 18:50 |
| OvenWerks | lsmod does not list any ffado modules so userspace | 18:52 |
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