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["Jeb E." <1410765@xxxxxxxxxxxxxxxxxx>]

System monitor status during a simple touch-up using "Heal" in GIMP. This is
the exact same file I was editing from yesterday with the same apps open at the
same time, ceteris paribus.
I could not perform a screenshot while GIMP was incoherent in the background,
forcing me to grab my phone to snap this picture.

As you can see, CPU usage goes through the roof in all four cores and
fluctuates quickly between using 100% of per-core power to much less, almost
like each core is taking a break or trying to push power elsewhere. RAM usage
actually appeared to be pretty stable though, so maybe this was not a RAM issue
too much at all?


The picture was too large to attach... Here is the link to it on Flickr:
https://www.flickr.com/photos/64718148@N06/16099603370/

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https://bugs.launchpad.net/bugs/1410765

Title:
  GIMP uses more system resources than necessary

Status in The GNU Image Manipulation Program (GIMP):
  New
Status in The Linux Lowlatency Kernel:
  Unknown
Status in gimp package in Ubuntu:
  New
Status in gimp package in Debian:
  Unknown

Bug description:
  I am using GNU Image Manipulation Program version 2.8.14 on Ubuntu 14.10 x64 on
  my AMD Phonom II X4 machine packed with 8GB DDR3 RAM and more than the
  recommended amount of SWAP-Space found in multiple locations throughout my PC,
  and even though I have all this caching space and more plus a powerful
  processor, GIMP still eats my computer's system resources alive even while
  doing some quick editing and touch-ups, specifically when using the Heal tool -
  The window will freeze up and continue what it's doing in the background, but
  for that time being, it won't let me do much besides that. 

  It has now gotten to a point where GIMP uses so many system resources all at
  one time where it locks up my (USB 2.0) keyboard for all apps and won't let me
  use the keyboard at all until GIMP is done doing what it is doing. 

  I have even switched to the LowLatency Linux Kernel to help speed up my PC and
  keep only needed background tasks while using minimal RAM. 


  
  See below for a HardInfo chart I pasted stating my Operating System
  information:

  
  -Version-
  Kernel        : Linux 3.16.0-29-lowlatency (x86_64)
  Compiled        : #39-Ubuntu SMP PREEMPT Mon Dec 15 22:55:59 UTC 2014
  C Library        : Unknown
  Default C Compiler        : GNU C Compiler version 4.9.1 (Ubuntu
  4.9.1-16ubuntu6) 
  Distribution        : Ubuntu 14.10
  -Current Session-
  Computer Name        : SDB
  User Name        : jeb (Jeb Eldridge)
  Home Directory        : /home/jeb
  Desktop Environment        : Unity (ubuntu)
  -Misc-
  Uptime        : 1 day, 16 hours and 52 minutes
  Load Average        : 0.29, 0.44, 0.76

  
  Attached is also a screenshot with "About This Computer" info shown.

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