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Old 02-20-2002, 10:17 AM   #1
J_Szucs
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Registered: Nov 2001
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Very poor performance in Linux


I experience very poor system performance when running programs that need a lot of memory.
Open Office start up e.g. takes 2 minutes, and opening a small document in it takes cca. 30 seconds...
I have only a P233 machine with 64 Megs of memory, but the same programs show much better performance in windows.
I suspect that the poor performance in Linux may be due to the extensive, unreasonable use of the disk cache memory.
So far as I can judge, Linux uses the disk cache even when there is plenty of free physical memory to use.
An example: I see that the system uses 28M disk cache, when there is 38 M free (cached) physical memory.
Is there a way I can change the memory-handling policy of Linux to use the disk cache only when there is no free physical memory?
 
Old 02-20-2002, 11:30 AM   #2
Thymox
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KDE is one of the most memory intensive window managers/desktop environments. You might want to try running something less greedy - I hear that BlackBox is good.
 
Old 02-20-2002, 12:44 PM   #3
J_Szucs
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I like KDE and I would prefer to keep it.
First I would like to know if the memory management policy can be optimized in Linux.
 
Old 02-20-2002, 03:55 PM   #4
J_Szucs
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Is there really no way to restrict disk cache usage when there is free physical memory? No way to set up or change memory handling policies?
 
Old 02-20-2002, 05:01 PM   #5
el_felipe
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Quote:
Originally posted by J_Szucs
I like KDE and I would prefer to keep it.
First I would like to know if the memory management policy can be optimized in Linux.
Everything can be optimized, you can start by optimizing the way you use your linux box . clean up services, recompile kernel, but also get more RAM, *get rid of KDE...*. Well if you absolutely want KDE try not to load to many stupid unnecessary things like fading menus and other useless s***t (4 example screensavers)

el_felipe
 
  


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