Question about X on the arm's.

Gene Heskett gheskett at
Fri Nov 25 10:24:56 UTC 2016

On Monday 21 November 2016 17:41:45 Gene Heskett wrote:

> Greetings X experts;
> I bought a monitor that should have been able to do 1920x1080p60Hz.
> One would expect thats a given when the card gets $140 lighter
> carrying it out past the RF stuff in Wallies front door frame, so I
> just bought 2 of the faster SBC's like the r-pi 3b but the one that
> will display what the r-pi 3b puts out, claimed to be a bit faster.
> It wasn't until I googled for its specs last night and discovered its
> max is 1366x768 that I actually got a picture out of it hooked to
> anything except the r-pi.
> My question has to do with the rendering and screen refresh rate,
> which is obviously about 1/4 of the speed an old single core, x86 P4.
> I am assuming the X built for it is single threaded, and it could be
> made more pleasant to use if it scattered its jobs about the 4 cores
> in the typical arm cpu.
> Is there a build switch that could accomplish this? This is a quad
> core 64 bit arm cpu, running at its default clock of 1.5GHz which it
> seems like should have the ponies to handle the load.  More heat sink
> maybe.

> Is there anything I can do, considering its only other job is
> serviceing the keyboard and rodent?

I've since found, using htop, that X is not the heaviest cpu hog, ssh is, 
about 3x that of X.

What cipher is the least intensive cpu load? I've found these things do 
not have telnet services installed.

Comments and suggestions welcome.

> Thanks everybody.

Cheers, Gene Heskett
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
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