[Linrad] Re: Ubuntu 8.10

[wi7p <emeshack.com; wi7p@xxxxxxxxxxxxxxxx>]

Joe,

What are your current platforms?

I would like to know what Linux distribution and release you are using
for
development.

Thanks
      Randy WI7P

On Nov 23, 8:23 pm, Joe Taylor <j...@xxxxxxxxxxxxx> wrote:
>
> I like to have stable O/S installations in both Windows and Linux that I
> can use both for program development and for operating.  I tend to stay
> with these installations, essentially unchanged, for at least several years.
>
> Because it's relevant to discussions that have taken place on the WSJT
> developers reflector, I am copying this message to that forum, as well.
>
>         -- 73, Joe, K1JT
>
> Leif Asbrink wrote:
> > Hi Roger,
>
> > You have solved the problem:-) My Ubuntu 8.10 installation had
> > 'Visual Effects' set to 'Normal'. That was the reason for
> > abnormal behaviour.
>
> > I have now set visual effects to 'None' and now the computer
> > has normal behaviour and seems to run as well as with other
> > distributions. (I have not analyzed timing issues in detail.)
> > Thank you Roger:-)
>
> >                         ---  0  ---
>
> > According to public media here in Sweden it seems like the
> > leading distributions are:
>
> > 1)Ubuntu
> > 2)Fedora
> > 3)Opensuse
> > 4)Mandriva
>
> > I am using Debian for my daily work, and I have now tested
> > Ubuntu 8.10 and Mandriva 2009 (the most recent ones) Both of
> > them (now) run well although I was not able to change the
> > numbering of my soundcards under Mandriva. ALSA is different
> > there somehow.
>
> > I will test Fedora and Opensuse also.
>
> > Is there anyone on this list who prefers another distribution
> > than the five mentioned? Slackware, Gentoo, CentOS or something
> > else? If you post a message to this list about why you prefer it
> > I will install it on my multi-partition hard disk and try to
> > install Linrad on it to see if there are any surprises...
>
> > 73
>
> > Leif / SM5BSZ
>
> > On Sun, 23 Nov 2008 09:43:03 -0500
> > w3sz <w...@xxxxxxxxxxx> wrote:
>
> >> What follows may or may not be germane to the issue you describe.
>
> >> I found that an earlier version of Ubuntu [8.04] installed, by
> >> default, here with 'Appearance' extras selected that caused no problem
> >> on 'modern' Core2Duo machines but which brought to its knees an old
> >> Pentium III that I ran remotely via VNC and using the Gnome desktop.
>
> >> The atrocious refresh and HID delays disappeared when I changed the
> >> 'appearance
> >> enhancements' to 'none' by clicking on 'System' then 'Preferences'
> >> then 'Appearance' then "Visual Effects', and then clicking to select
> >> the 'None' radio button.
>
> >> I found that neither 'Normal' or 'Extra' settings of the 'Visual
> >> Effects' gave satisfactory performance when the VNC server was active
> >> on this old, slow machine.  With the setting of 'None', everything
> >> works acceptably.
>
> >> Check your 8.10 install and see if something other than 'None' is
> >> selected.  If so, select 'None', then recheck your CPU utilization.  I
> >> would also suggest rebooting and then checking it again after making
> >> the change from either 'Normal' or 'Extra' to 'None'.
>
> >> Because you report that 8.04 did not exhibit porcine CPU behavior for
> >> you, this issue may not be related to your problem.  On the other
> >> hand, it is possible that the 'default' settings of 'Visual Effects'
> >> have not remained constant throughout the lifetime of 8.04, and that
> >> your default install settings for 8.04 were not identical to mine,
> >> thus preventing you from seeing the problem
> >> with 8.04.
>
> >> If the above issue is NOT germane to the problem you described, please
> >> accept my apologies for the bandwidth.
>
> >> 73,
>
> >> Roger Rehr
> >> W3SZ
> >>http://www.nitehawk.com/w3sz
>
> >> Quoting Leif Asbrink <l...@xxxxxxxxxx>:
>
> >>> Hi All,
>
> >>> The latest version of Ubuntu is extremely CPU hungry when
> >>> used with X11. Just running the system monitor loads the
> >>> CPU with 20%. Xorg, the X11 server uses 15% and the system
> >>> monitor uses 4%.
>
> >>> Debian unstable which has the same system monitor uses
> >>> 6% for Xorg and 4% for the system monitor.
>
> >>> Debian stable uses the older system monitor which is far less
> >>> CPU hungry. It moves the curves horizontally step-wize and
> >>> uses 4% for Xorg and only 1% for the monitor itself.
>
> >>> The above numbers are for a 2.6GHz Pentium IV.
>
> >>> The very high load caused by the X11 server may make it necessary
> >>> to increase the output delay margin and to decrease the max
> >>> DMA rate.
>
> >>> I would recommend Ubuntu 8.04 or any other Linux distribution
> >>> if you want to run Linrad under X11.
>
> >>> In case you love Ubuntu 8.10 for some reason, download
> >>> svgalib1925-1.tbz from here:
> >>>http://www.sm5bsz.com/linuxdsp/install/svgainst.htm
> >>> The modified svgalib-1.9.25 package will compile under
> >>> Ubuntu 8.10
>
> >>> Press Ctrl Alt F1 to get into terminal mode and run Linrad
> >>> from there (do not forget sudo.) Ubuntu 8.10 runs at full speed
> >>> With svgalib in terminal mode:-)
>
> >>> 73
>
> >>> Leif / SM5BSZ
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