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[ILUG] X gobbles CPU with online.ie

[ILUG] X gobbles CPU with online.ie

Niall O Broin niall at magicgoeshere.com
Sat Nov 11 00:26:23 GMT 2000


As above, but why ? Here's X's line from top on this box (750 MHz Athlon, 256M
RAM) right now with Netscape running (3 windows open) and assorted other
command windows. I'm running KDE and Netscape is not displaying on the screen.

PID USER     PRI  NI  SIZE  RSS SHARE STAT  LIB %CPU %MEM   TIME COMMAND    
361 root      19   0 64876  63M  2204 S       0  0.3 25.1   5:12 X

Now here it is again

361 root      14   0 64876  63M  2204 S       0 20.9 25.1   6:44 X

and the difference is that I now have a page open from online.ie (doesn't
appear to matter much which page). In this state, my mouse response becomes
sluggish (though only when the Netscape screen is the current one).

Now, when I'm loading the page I see some
"Javascript error" messages in the status line. When I open the Javascript
console I see a number of errors like the following 

JavaScript Error:
http://ads.rondomondo.com/RealMedia/ads/adstream_jx.ads/www.online.ie/host//1563330446@Top,
line 1:

syntax error. 

<html>
^

I don't, however, think that the slowness is Javascript related - it still
happens when I have Javascript disabled in the browser. And there doesn't
appear to be anything going on with the browser i.e. it's not displaying a
bunch of animated GIFs or anything. What on earth is happening here ?

And while we're about X CPU usage oddities - look at this.

361 root      12   0 64896  63M  2224 R       0 38.4 25.2  12:31 X


What's going on here - no. I'm not simultaneously looking at two pages from
Online (must try that :-) - I'm not even looking at one and before I ran a
particular command X was quiescent again i.e. using < 1% of CPU. And what
terrible X killer am I running - ping -f localhost (idle curiosity as to how
many packets were dropped when no network was involved). Now what is THAT
doing to X ? Again, mouse performance is sluggish, but only when I'm
displaying the screen where the ping is running. But there is a difference
here from the Netscape/online.ie case - the ping only results in huge X CPU
usage if the top is also running on the same screen as the ping - otherwise,
there's huge usage by a konsole process.

OK - I've gone on long enough. None of this is life threatening, but it IS
all very curious :-)



Regards,


Niall




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