2016-11-25 11:24 keltezéssel, Gene Heskett írta:
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.
Ping?
Rasterman replied to you soon after your mail. See
https://lists.x.org/archives/xorg/2016-November/058447.html
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.
How about arcfour or one of its variants?
On a trusted the LAN even a slow Geode LX can produce more than
100Mbit LAN bandwith. With more CPU intensive ciphers the speed
is reduced to around 2MByte/sec.
Comments and suggestions welcome.
Thanks everybody.
Cheers, Gene Heskett
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