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xterm 3% cpu usage, urxvt 40%, WHY????
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_______0
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Joined: 15 Oct 2012
Posts: 521

PostPosted: Wed Jan 02, 2013 5:43 pm    Post subject: xterm 3% cpu usage, urxvt 40%, WHY???? Reply with quote

hi,

urxvt seems to have a problem with its rendering engine. Something as simple as playing a song with mplayer that displays this on the terminal:

Code:
A:   0.6 V:   0.6 A-V:  0.005 ct:  0.029   0/  0 12%  0%  2.2% 0 0


with urxvt xorg process X goes up to 40%, when I do this with xterm xorg X process stays at 3%.

How can this be??

my current rxvt-unicode USE flags are:

Code:
256-color alt-font-width fading-colors focused-urgency font-styles iso14755 mousewheel perl
unicode3 xft -afterimage -blink -buffer-on-clear -pixbuf -secondary-wheel -startup-notification -vanilla -wcwidth


I want to fix this once and for all. Whatever urxvt is doing sometimes causes to crash the shell even.

If anyone know where I can start looking at this matter I'd appreciate it much.

thnks
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eccerr0r
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Joined: 01 Jul 2004
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PostPosted: Wed Jan 02, 2013 9:38 pm    Post subject: Reply with quote

I have no idea but perhaps have some ideas... Are you using transparent background?

What about if you did something "find /" in a window, which uses more CPU - urxvt or xterm?

What video card are you using? And driver? Is it accelerated?

Do vte-derived terminals (like gnome-terminal) behave badly too?
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_______0
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PostPosted: Thu Jan 03, 2013 9:22 pm    Post subject: Reply with quote

anybody?
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Hu
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Joined: 06 Mar 2007
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PostPosted: Fri Jan 04, 2013 2:56 am    Post subject: Reply with quote

_______0 wrote:
anybody?

eccerr0r asked some good questions. Can you answer them?
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Logicien
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Joined: 16 Sep 2005
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PostPosted: Fri Jan 04, 2013 3:20 am    Post subject: Reply with quote

Xterm have 4 differents USE flags and rxvt-unicode have 18. That's make rxvt-unicode surely less light then xterm. Try to compile rxvt (4 USE flags) to see if it use less resources than rxvt-unicode. Try to disable selectively rxvt-unicode USE flags to find out which one consume most resources.
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