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See BLT.

performance tuning: Performance tuning is the process of making adjustments to the software or hardware configuration of a computer or network to improve performance. Performance must be considered against some objective, like speed (probably the most common?), minimizing use of resources (like memory, disk, or bandwidth), or other similar criteria. Performance tuning is a typical duty of a system administrator.

Contents

Notes

I have instances of poor performance on System5. Often when that I find some kdeinit or kmail processes (on top) that are each trying to use all the available CPU (they might each say they are using 90%+, but of course the total usage cannot exceed 100%). I usually quit kmail, kill those processes, restart kmail, and performance is back to "normal" again.

If I discuss performance tuning I should also mention things like my observation that Linux as far back as pre-Mandrake 7.2 is slower than Win95, even comparing Win 95 (and Office 97, IE, etc.) with 32 MB of RAM to Mandrake 7.2 (and KDE) with 128 MB of RAM. Those observations are recorded somewhere either on WikiLearn or my home TWiki. I believe it is a fair comparison although many people have argued that it is unfair.

Resources

See ResourceRecommendations.

Recommended

  • Why is my system so slow?; A.P. Lawrence Home(??); viewed 16 Sept 2002 -- looks like it's worth a read -- I started once, also links to other stuff which could be useful as they seemed to be aimed at people in a hurry (sort of like one of my aims on WikiLearn) Quoting:

This is not a performance tuning article. If your system is always slow, this article may not be what you are looking for. I'll be covering some general performance related issues here, but the main focus is for the system that was running fine yesterday but is sucking mud today. The typical response to such problems is "Reboot it", and while that may indeed fix the problem, it does not address the root cause, so you are likely to have the situation again.

Contributors

  • RandyKramer - 02 Feb 2002
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