Buildbot + Debian 11 / Bullseye Questions
10 Oct 2021 09:51 #222725
by phillc54
There is work currently being done to achieve this.
Replied by phillc54 on topic Buildbot + Debian 11 / Bullseye Questions
I think the right path forward is work with the Debian guys to have a deb for 2.9 branch published in the debian repos.
There is work currently being done to achieve this.
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10 Oct 2021 09:53 #222726
by rodw
Replied by rodw on topic Buildbot + Debian 11 / Bullseye Questions
Awesome news Phill. We really need a Debian 11 deb file available before then though.
I think the right path forward is work with the Debian guys to have a deb for 2.9 branch published in the debian repos.
There is work currently being done to achieve this.
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10 Oct 2021 11:40 #222738
by hhogendoorn
Replied by hhogendoorn on topic Buildbot + Debian 11 / Bullseye Questions
I do have a problem with the Latency test on Debian 11 (with 2.9), the value is around 90000 ns, with Debian 10 (2.8.2) the Latency is around 15000 ns.
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10 Oct 2021 18:29 #222789
by rodw
with
This dropped latency from 183k to 22k for my J1900 with xfce GUI
installing Mate increased it to 86k whch is still OK for a Mesa card.
Replied by rodw on topic Buildbot + Debian 11 / Bullseye Questions
It may not work for your hardware, but open grub-customizer and replaceI do have a problem with the Latency test on Debian 11 (with 2.9), the value is around 90000 ns, with Debian 10 (2.8.2) the Latency is around 15000 ns.
quietquiet isolcpus=1,2,3 idle=pollThis dropped latency from 183k to 22k for my J1900 with xfce GUI
installing Mate increased it to 86k whch is still OK for a Mesa card.
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10 Oct 2021 21:02 #222795
by Joco
Replied by Joco on topic Buildbot + Debian 11 / Bullseye Questions
That's interesting re Xfce v's Mate. I guess I should have expected it but that is quite a delta. I might need ot try Xfce on my HP T730 at some point and see how it behaves. I'm getting circa 40k with Mate installed and the cpu isolation in place.
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10 Oct 2021 21:08 #222796
by Joco
I have tested Debian 10 and various flavours of RT kernel version and 2.8 or 2.9 on some kit and found the only way I could get decent latency (i.e. substantially sub 100k) was to use Mint19 with a 4.x RT kernel.
So if things are not to your liking using Debain you can get good results by using other Linux flavours. You just need to be prepared to put the time in to experiment.
Cheers - J.
Replied by Joco on topic Buildbot + Debian 11 / Bullseye Questions
These things do seem to be dependent on your h/w. Even after applying the kernel boot options Rod mentions.I do have a problem with the Latency test on Debian 11 (with 2.9), the value is around 90000 ns, with Debian 10 (2.8.2) the Latency is around 15000 ns.
I have tested Debian 10 and various flavours of RT kernel version and 2.8 or 2.9 on some kit and found the only way I could get decent latency (i.e. substantially sub 100k) was to use Mint19 with a 4.x RT kernel.
So if things are not to your liking using Debain you can get good results by using other Linux flavours. You just need to be prepared to put the time in to experiment.
Cheers - J.
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10 Oct 2021 21:10 #222797
by rodw
This method makes the change trivial...
bytexd.com/switch-desktop-environments-u...-debian-commandline/
Replied by rodw on topic Buildbot + Debian 11 / Bullseye Questions
I was thinking afterwards it might not be all mate becasue I have also added a FTP server and a XRDP server to it as well before adding Mate.. Maybe they've added a bit of a hit.That's interesting re Xfce v's Mate. I guess I should have expected it but that is quite a delta. I might need ot try Xfce on my HP T730 at some point and see how it behaves. I'm getting circa 40k with Mate installed and the cpu isolation in place.
This method makes the change trivial...
bytexd.com/switch-desktop-environments-u...-debian-commandline/
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10 Oct 2021 23:02 #222808
by Joco
Replied by Joco on topic Buildbot + Debian 11 / Bullseye Questions
the XRDP server will be the one most likely to create a hit SSH/FTP are very light weight.
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11 Oct 2021 02:25 - 11 Oct 2021 02:26 #222814
by phillc54
Replied by phillc54 on topic Buildbot + Debian 11 / Bullseye Questions
github.com/LinuxCNC/linuxcnc/pull/1298I think the right path forward is work with the Debian guys to have a deb for 2.9 branch published in the debian repos.
There is work currently being done to achieve this.
Awesome news Phill. We really need a Debian 11 deb file available before then though.
Last edit: 11 Oct 2021 02:26 by phillc54.
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11 Oct 2021 10:13 #222835
by hhogendoorn
Replied by hhogendoorn on topic Buildbot + Debian 11 / Bullseye Questions
Saves about 50% , thanks!
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