Re: [beagleboard] Saving content from TI Wiki

2020-10-09 Thread Robert Nelson
On Fri, Oct 9, 2020 at 4:01 PM din...@gmail.com  wrote:
>
> Dear Beagleboard.org overseers,
>
> The TI Processors Wiki is being shutdown. I think valuable information would 
> be lost that cannot be found in TRMs or Datasheets. For example, the 
> following opcodes information was crucial while porting the GNU assembler for 
> PRU:
> https://processors.wiki.ti.com/index.php/Programmable_Realtime_Unit
>
> Are you willing to transfer that and similar content to beagleboard.org ? 
> Wikimedia page sources can be mostly automatically translated to MarkDown or 
> HTML. So content could be served   as a static page, with no need to host 
> dynamic Wiki.


I don't think we could get access to that..

http://web.archive.org/web/20190916141936/http://processors.wiki.ti.com:80/index.php/Programmable_Realtime_Unit

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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[beagleboard] Saving content from TI Wiki

2020-10-09 Thread din...@gmail.com
Dear Beagleboard.org overseers,

The TI Processors Wiki is being shutdown. I think valuable information 
would be lost that cannot be found in TRMs or Datasheets. For example, the 
following opcodes information was crucial while porting the GNU assembler 
for PRU:
https://processors.wiki.ti.com/index.php/Programmable_Realtime_Unit

Are you willing to transfer that and similar content to beagleboard.org ? 
Wikimedia page sources can be mostly automatically translated to MarkDown 
or HTML. So content could be served   as a static page, with no need to 
host dynamic Wiki.

Regards,
Dimitar

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Re: [beagleboard] Installing Xenomai on a BeagleBone Black with kernel 4.4.91-ti-r133

2020-10-09 Thread Robert Nelson
On Fri, Oct 9, 2020 at 2:39 PM Robert Heller  wrote:
>
> At Fri, 9 Oct 2020 12:38:29 -0500 beagleboard@googlegroups.com wrote:
>
> >
> > On Fri, Oct 9, 2020 at 12:29 PM Robert Heller  wrote:
> > >
> > > I am looking into installing Xenomai with a RT kenel based on 
> > > 4.4.91-ti-r133,
> > > but the Xenomai install documentation I am finding talks about 
> > > building/using
> > > a 3.8 vintage kernel.  Is this documentation valid for the 4.4.91-ti-r133
> > > kernel?
> >
> > If your on Debian Stretch, here are teh 3 versions of Xenomai:
> >
> > http://repos.rcn-ee.net/latest/stretch-armhf/LATEST-ti-xenomai
> >
> > To install one, just run:
> >
> > sudo apt update
> > sudo apt install linux-image-(kernel tagfrom list)
>
> OK, I installed kernel 4.4.113-ti-xenomai-r149. Do I need to install anything
> else to make use of the RT features of this kernel?  Do I need to install
> Xenomai 3.x from source?

You need to build and install the userspace library to match that
version of Xenomai..

The version should be reported by 'dmesg' so just get that matching version..

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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Re: [beagleboard] Installing Xenomai on a BeagleBone Black with kernel 4.4.91-ti-r133

2020-10-09 Thread Robert Heller
At Fri, 9 Oct 2020 12:38:29 -0500 beagleboard@googlegroups.com wrote:

> 
> On Fri, Oct 9, 2020 at 12:29 PM Robert Heller  wrote:
> >
> > I am looking into installing Xenomai with a RT kenel based on 
> > 4.4.91-ti-r133,
> > but the Xenomai install documentation I am finding talks about 
> > building/using
> > a 3.8 vintage kernel.  Is this documentation valid for the 4.4.91-ti-r133
> > kernel?
> 
> If your on Debian Stretch, here are teh 3 versions of Xenomai:
> 
> http://repos.rcn-ee.net/latest/stretch-armhf/LATEST-ti-xenomai
> 
> To install one, just run:
> 
> sudo apt update
> sudo apt install linux-image-(kernel tagfrom list)

Well, that was easy...  Thanks.


> 
> 
> Regards,
> 

-- 
Robert Heller -- Cell: 413-658-7953 GV: 978-633-5364
Deepwoods Software-- Custom Software Services
http://www.deepsoft.com/  -- Linux Administration Services
hel...@deepsoft.com   -- Webhosting Services

 

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Re: [beagleboard] Installing Xenomai on a BeagleBone Black with kernel 4.4.91-ti-r133

2020-10-09 Thread Robert Heller
At Fri, 9 Oct 2020 12:38:29 -0500 beagleboard@googlegroups.com wrote:

> 
> On Fri, Oct 9, 2020 at 12:29 PM Robert Heller  wrote:
> >
> > I am looking into installing Xenomai with a RT kenel based on 
> > 4.4.91-ti-r133,
> > but the Xenomai install documentation I am finding talks about 
> > building/using
> > a 3.8 vintage kernel.  Is this documentation valid for the 4.4.91-ti-r133
> > kernel?
> 
> If your on Debian Stretch, here are teh 3 versions of Xenomai:
> 
> http://repos.rcn-ee.net/latest/stretch-armhf/LATEST-ti-xenomai
> 
> To install one, just run:
> 
> sudo apt update
> sudo apt install linux-image-(kernel tagfrom list)

OK, I installed kernel 4.4.113-ti-xenomai-r149. Do I need to install anything
else to make use of the RT features of this kernel?  Do I need to install 
Xenomai 3.x from source?

> 
> 
> Regards,
> 

-- 
Robert Heller -- Cell: 413-658-7953 GV: 978-633-5364
Deepwoods Software-- Custom Software Services
http://www.deepsoft.com/  -- Linux Administration Services
hel...@deepsoft.com   -- Webhosting Services



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Re: [beagleboard] Installing Xenomai on a BeagleBone Black with kernel 4.4.91-ti-r133

2020-10-09 Thread Robert Nelson
On Fri, Oct 9, 2020 at 12:29 PM Robert Heller  wrote:
>
> I am looking into installing Xenomai with a RT kenel based on 4.4.91-ti-r133,
> but the Xenomai install documentation I am finding talks about building/using
> a 3.8 vintage kernel.  Is this documentation valid for the 4.4.91-ti-r133
> kernel?

If your on Debian Stretch, here are teh 3 versions of Xenomai:

http://repos.rcn-ee.net/latest/stretch-armhf/LATEST-ti-xenomai

To install one, just run:

sudo apt update
sudo apt install linux-image-(kernel tagfrom list)


Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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[beagleboard] Installing Xenomai on a BeagleBone Black with kernel 4.4.91-ti-r133

2020-10-09 Thread Robert Heller
I am looking into installing Xenomai with a RT kenel based on 4.4.91-ti-r133,
but the Xenomai install documentation I am finding talks about building/using
a 3.8 vintage kernel.  Is this documentation valid for the 4.4.91-ti-r133 
kernel?


-- 
Robert Heller -- Cell: 413-658-7953 GV: 978-633-5364
Deepwoods Software-- Custom Software Services
http://www.deepsoft.com/  -- Linux Administration Services
hel...@deepsoft.com   -- Webhosting Services

 

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[beagleboard] Re: Boot time optimization

2020-10-09 Thread Tarmo
On Thursday, October 8, 2020 at 11:28:49 PM UTC+3 mfar...@gmail.com wrote:

> kernel:[5.4.47-bone30]
>

Ooh, kernel 5.4 - how experimental is this?
 

>   1min 34.446s dev-mmcblk0p2.device
>  1min 2.259s generic-board-startup.service
>  50.664s dev-loop8.device
>  49.671s dev-loop7.device
>  49.351s dev-loop6.device
>  48.843s dev-loop4.device
>  48.804s dev-loop5.device
>  48.462s dev-loop3.device
>  48.420s dev-loop1.device
>  48.392s dev-loop0.device
>  48.197s dev-loop2.device
>

I haven't seen those dev-loop devices before (perhaps they come with kernel 
5.4). They look rather suspicious with the 50 second duration. Have a look 
at what their logs say, e.g.:

$ journalctl -u dev-loop0
 

>  24.250s snapd.service
>
 
The snap package system is a bit of a resource hog and it primarily serves 
as a convenience for some minority use cases. Are you sure you need it on a 
BBB?
Final thought - maybe your SD card simply has poor performance? I doubt 
it'll make a significant difference, but you can try flashing your image 
into eMMC or using a higher-end SD card.

--
Kind regards,
Tarmo

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