updates 2.9 Bookworm

Hello,
From which repos can you get updates 2.9-uspace for Bookworm type 2.9.1.xxx before the official releases are released?
or does not exist for Bookworm?

It has been released. Get it from the linuxcnc downloads page.

 
 
You did not understand me, for the buster I can get the update 2.9.1.40 today, can I get the same for bookworm?

linuxcnc.org/docs/stable/html/getting-st..._setting_apt_sources

thanks, but I see in the repo clean 2.9.1

Good luck using 2.9.1 on buster. I would recommend upgrading to bookworm using the ISO on th edownloads page.
I have not used Buster for 3 or so years...

now I have a buster on one machine, on another bookworm. latency 2 times in favor of the buster. Motherboards and the rest are the same. dealing with settings...

I wish the bookworm latency issues would get dialed in and sorted, seems it keeps getting worse and worse with each new kernel release. the latest (6.1.0-15) was awful, I had to revert back to 6.1.0-13 because the machine wanted to shake itself apart when I tried to home and it started popping up latency warnings. what a mess! seems like someone could identify the issues and iron them out, i imagine many folks, myself included would be grateful to get the latency we were seeing back in debian stretch.

Version 6.1.67-rt20 of the real time kernel was released today but it will take a while before it is available in Debian (if at all)

Brief instructions to install mentioned with the release
Or to build 6.1.67-rt20 directly, the following patches should be applied:

   www.kernel.org/pub/linux/kernel/v6.x/linux-6.1.tar.xz

   www.kernel.org/pub/linux/kernel/v6.x/patch-6.1.67.xz

   www.kernel.org/pub/linux/kernel/projects...6.1.67-rt20.patch.xz

 

Lcvette wrote:

I wish the bookworm latency issues would get dialed in and sorted.
 

I've managed to dial my latency down to +/-0.04ms with ethtool. Contrary to the infamous hardware-irq-coalesce-rx−usecs 0 documented (this 0 didn't worked for me, made things worst in fact), some tuning/testing is required. 

Using ethtool --coalesce
$ sudo apt install ethtool
$ sudo ethtool -c eth0
( take notes of your rx-usecs and tx-usecs defaults. Mine were 100 and 1000 respectively)
( start Linuxcnc and have it connected to the card)
( Time to dial/tune)

$ sudo ethtool -C eth0 rx-usecs 50
$ sudo ethtool -C eth0 tx-usecs 500
$ ping ip.ip.ip.ip
....
$ sudo ethtool -C eth0 rx-usecs 25
$ sudo ethtool -C eth0 tx-usecs 250
$ ping ip.ip.ip.ip
....
( Repeat tuning until you get satisfactory latency and no lcnc task/axis pos errors, etc. )
( Once everyone's happy, save those in your interface conf. )

$ sudo nano /etc/network/interfaces

***********************************************
      # The loopback network interface
      auto lo
      iface lo inet loopback

      auto eth0
      iface eth0 inet static
      (... ... static address stuff)
      hardware-irq-coalesce-rx−usecs 25
      hardware-irq-coalesce-tx−usecs 250
***********************************************

$ sudo systemctl restart networking