Launching MaxIDE pegs xorg CPU usage

When I launch MaxIDE 1.3 - the version available for download separately from the forum here - xorg's CPU usage pegs to around 25% and remains there. This doesn't happen with any other applications I use on a regular basis, not even firefox or other IDEs.

Before launching maxide:

top - 22:01:22 up 41 min,  3 users,  load average: 0.07, 0.19, 0.27
Tasks: 122 total,   1 running, 121 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.6%us,  0.3%sy,  0.0%ni, 99.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   2044196k total,   927012k used,  1117184k free,    25308k buffers
Swap:   781240k total,        0k used,   781240k free,   507972k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND            
 7156 isaac     20   0 24676  17m 7072 S    1  0.9   0:05.68 compiz.real        
 6880 root      20   0  395m  50m 9208 S    1  2.5   0:41.47 Xorg               
 7022 isaac     20   0 15172 2656 1812 S    1  0.1   0:00.80 gnome-screensav    
 7286 isaac     20   0 77992  20m  11m S    1  1.0   0:00.98 gnome-terminal     
    1 root      20   0  2828 1752  608 S    0  0.1   0:01.20 init               
    2 root      15  -5     0    0    0 S    0  0.0   0:00.00 kthreadd           
    3 root      RT  -5     0    0    0 S    0  0.0   0:00.00 migration/0        
    4 root      15  -5     0    0    0 S    0  0.0   0:00.20 ksoftirqd/0        
    5 root      RT  -5     0    0    0 S    0  0.0   0:00.00 watchdog/0         
    6 root      RT  -5     0    0    0 S    0  0.0   0:00.00 migration/1        
    7 root      15  -5     0    0    0 S    0  0.0   0:00.00 ksoftirqd/1        
    8 root      RT  -5     0    0    0 S    0  0.0   0:00.00 watchdog/1         
    9 root      15  -5     0    0    0 S    0  0.0   0:00.06 events/0           
   10 root      15  -5     0    0    0 S    0  0.0   0:00.02 events/1           
   11 root      15  -5     0    0    0 S    0  0.0   0:00.00 khelper            
   46 root      15  -5     0    0    0 S    0  0.0   0:00.06 kblockd/0          
   47 root      15  -5     0    0    0 S    0  0.0   0:00.00 kblockd/1          

After launching maxide (no files open):

top - 22:02:46 up 42 min,  3 users,  load average: 0.28, 0.21, 0.27
Tasks: 123 total,   3 running, 120 sleeping,   0 stopped,   0 zombie
Cpu(s): 14.7%us,  1.5%sy,  0.0%ni, 83.8%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   2044196k total,   941700k used,  1102496k free,    25348k buffers
Swap:   781240k total,        0k used,   781240k free,   507976k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND            
 6880 root      20   0  404m  59m 9220 R   27  3.0   0:58.71 Xorg               
 7156 isaac     20   0 24816  17m 7088 S    2  0.9   0:06.88 compiz.real        
 7527 isaac     20   0 10420 7132 2440 S    2  0.3   0:01.24 MaxIDE             
 7022 isaac     20   0 15172 2656 1812 S    1  0.1   0:00.90 gnome-screensav    
 7091 isaac     20   0 20920 8292 7036 S    1  0.4   0:00.50 multiload-apple    
 7286 isaac     20   0 78060  20m  11m R    1  1.0   0:01.20 gnome-terminal     
    1 root      20   0  2828 1752  608 S    0  0.1   0:01.20 init               
    2 root      15  -5     0    0    0 S    0  0.0   0:00.00 kthreadd           
    3 root      RT  -5     0    0    0 S    0  0.0   0:00.00 migration/0        
    4 root      15  -5     0    0    0 S    0  0.0   0:00.20 ksoftirqd/0        
    5 root      RT  -5     0    0    0 S    0  0.0   0:00.00 watchdog/0         
    6 root      RT  -5     0    0    0 S    0  0.0   0:00.00 migration/1        
    7 root      15  -5     0    0    0 S    0  0.0   0:00.00 ksoftirqd/1        
    8 root      RT  -5     0    0    0 S    0  0.0   0:00.00 watchdog/1         
    9 root      15  -5     0    0    0 S    0  0.0   0:00.06 events/0           
   10 root      15  -5     0    0    0 S    0  0.0   0:00.02 events/1           
   11 root      15  -5     0    0    0 S    0  0.0   0:00.00 khelper            

This might be related to how many files are / were open. If I open MaxIDE, and close any automatically opened files, the CPU remains at around 25% for xorg. If I then close MaxIDE and reopen it (therefore there are no files automatically loaded), xorg stays at about 1% CPU or less. It looks like perhaps something with the way that the text areas are drawn, and maybe that they are not cleaned up properly when the files are closed. Just a theory though.

sounds for me really strange. what distribution are you using? version of xorg/xorg-server? does it happen to older versions of maxide? what arch are you using? 32bit or 64bit? if 64bit...are you using a chroot or a multilib system?

top - 17:49:42 up  1:24,  0 users,  load average: 0.02, 0.14, 0.17
Tasks:  90 total,   1 running,  89 sleeping,   0 stopped,   0 zombie
Cpu(s):  2.1%us,  0.3%sy,  0.0%ni, 97.5%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   2059056k total,  1433560k used,   625496k free,    76084k buffers
Swap:  2096472k total,        0k used,  2096472k free,   760308k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND           
 3847 stephan   20   0  568m 162m  27m S    5  8.1   2:16.57 firefox            
 3720 stephan   20   0  942m 231m  26m S    3 11.5   0:53.16 java               
 3559 root      20   0  164m  72m  23m S    1  3.6   2:32.52 X                  
 3971 stephan   20   0 11640 8224 2408 S    1  0.4   1:16.29 MaxIDE             
 6204 stephan   20   0 10592 1220  924 R    0  0.1   0:00.01 top                
    1 root      20   0  3796  620  536 S    0  0.0   0:00.49 init               
    2 root      15  -5     0    0    0 S    0  0.0   0:00.00 kthreadd           
    3 root      RT  -5     0    0    0 S    0  0.0   0:00.00 migration/0        
    4 root      15  -5     0    0    0 S    0  0.0   0:00.09 ksoftirqd/0        
    5 root      RT  -5     0    0    0 S    0  0.0   0:00.00 watchdog/0         
    6 root      RT  -5     0    0    0 S    0  0.0   0:00.00 migration/1        
    7 root      15  -5     0    0    0 S    0  0.0   0:00.35 ksoftirqd/1        
    8 root      RT  -5     0    0    0 S    0  0.0   0:00.00 watchdog/1         
    9 root      15  -5     0    0    0 S    0  0.0   0:00.38 events/0           
   10 root      15  -5     0    0    0 S    0  0.0   0:00.06 events/1           
   11 root      15  -5     0    0    0 S    0  0.0   0:00.00 khelper            
   12 root      15  -5     0    0    0 S    0  0.0   0:00.01 kblockd/0      

I'm using Ubuntu 8.04 on a MacBook, 32bit 2.6.24-19-generic
Not sure how to get the xorg version, but it should be the one that comes with Ubuntu 8.04
I didn't notice this before, but I can see if it happens with other versions, provided they launch...

Well, this is weird, I just launched the original ide that came with the 1.30 ZIP file,

top - 12:37:48 up  2:10,  2 users,  load average: 0.73, 0.52, 0.27
Tasks: 122 total,   1 running, 121 sleeping,   0 stopped,   0 zombie
Cpu(s):  7.7%us,  1.8%sy,  0.0%ni, 90.5%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   2044196k total,  1577540k used,   466656k free,   103148k buffers
Swap:   781240k total,        0k used,   781240k free,   843364k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND            
 8000 isaac     20   0  163m  55m  21m S    8  2.8   4:41.68 rhythmbox          
 5841 root      20   0  447m  97m  12m S    1  4.9   2:54.54 Xorg               
 9426 isaac     20   0 10988 7488 2072 S    1  0.4   0:00.26 MaxIDE-original    
 6200 isaac     20   0 25352  17m 7088 S    0  0.9   0:45.92 compiz.real        
 6419 isaac     20   0  108m  30m  19m S    0  1.5   0:05.00 pidgin             
    1 root      20   0  2844 1688  544 S    0  0.1   0:01.20 init               
    2 root      15  -5     0    0    0 S    0  0.0   0:00.00 kthreadd           
    3 root      RT  -5     0    0    0 S    0  0.0   0:00.00 migration/0        
    4 root      15  -5     0    0    0 S    0  0.0   0:00.26 ksoftirqd/0        
    5 root      RT  -5     0    0    0 S    0  0.0   0:00.00 watchdog/0         
    6 root      RT  -5     0    0    0 S    0  0.0   0:00.00 migration/1        
    7 root      15  -5     0    0    0 S    0  0.0   0:00.08 ksoftirqd/1        
    8 root      RT  -5     0    0    0 S    0  0.0   0:00.00 watchdog/1         
    9 root      15  -5     0    0    0 S    0  0.0   0:00.10 events/0           
   10 root      15  -5     0    0    0 S    0  0.0   0:00.06 events/1           
   11 root      15  -5     0    0    0 S    0  0.0   0:00.00 khelper            
   46 root      15  -5     0    0    0 S    0  0.0   0:00.16 kblockd/0          

Retrying the new one downloaded from the forum still gives oddly high xorg CPU usage. System has been restarted a few times since I originally posted so it isn't a transient issue.

top - 12:38:45 up  2:11,  2 users,  load average: 0.75, 0.56, 0.30
Tasks: 123 total,   1 running, 122 sleeping,   0 stopped,   0 zombie
Cpu(s): 18.7%us,  1.1%sy,  0.0%ni, 80.3%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   2044196k total,  1647000k used,   397196k free,   103272k buffers
Swap:   781240k total,        0k used,   781240k free,   846912k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND            
 5841 root      20   0  459m 109m  12m S   18  5.5   3:00.57 Xorg               
 8000 isaac     20   0  163m  55m  21m S    3  2.8   4:44.01 rhythmbox          
 9483 isaac     20   0 10456 7120 2396 S    2  0.3   0:00.44 MaxIDE             
 6200 isaac     20   0 25352  17m 7088 S    2  0.9   0:46.49 compiz.real        
 9433 isaac     20   0  205m  76m  22m S    1  3.8   0:08.25 firefox            
 9414 isaac     20   0  2308 1120  852 R    1  0.1   0:00.20 top                
    1 root      20   0  2844 1688  544 S    0  0.1   0:01.20 init               
    2 root      15  -5     0    0    0 S    0  0.0   0:00.00 kthreadd           
    3 root      RT  -5     0    0    0 S    0  0.0   0:00.00 migration/0        
    4 root      15  -5     0    0    0 S    0  0.0   0:00.28 ksoftirqd/0        
    5 root      RT  -5     0    0    0 S    0  0.0   0:00.00 watchdog/0         
    6 root      RT  -5     0    0    0 S    0  0.0   0:00.00 migration/1        
    7 root      15  -5     0    0    0 S    0  0.0   0:00.08 ksoftirqd/1        
    8 root      RT  -5     0    0    0 S    0  0.0   0:00.00 watchdog/1         
    9 root      15  -5     0    0    0 S    0  0.0   0:00.10 events/0           
   10 root      15  -5     0    0    0 S    0  0.0   0:00.06 events/1           
   11 root      15  -5     0    0    0 S    0  0.0   0:00.00 khelper            

I'm not sure what changed in this version of the IDE but it clearly is doing something to make xorg freak out a bit. There is a different visual style / skin or something. It does look much nicer than the original IDE that came with 1.30...

Not sure what else I can try. I pretty much can't use this as-is though, mainly because I don't trust it or like the potential effects of my machine never going idle.

My guess...
new one : gcc 4.x
old one : gcc 3.x

?

(well, I thought Seb was using 4.x now, but I might be wrong :-)

I noticed similar behaviour but I haven't yet been able to track down what's eating the cycles. I am using gcc4.x to compile on my Ubuntu PC. If anyone has MaxGUI, and wants to see whether this is the problem, they can checkout and compile the latest versions of maxide.bmx and MaxGUI from their respective repositories, and let me know if they still experience high CPU cycles when running MaxIDE built from gcc3.x.