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KernelTrap: Orthogonal Interactivity Patches

Aug 27, 2003, 08:30 (4 Talkback[s])

[ Thanks to Jeremy Andrews for this link. ]

"Con Kolivas posted a lengthy and very interesting summary of his attempts to increase interactivity in the upcoming 2.6 Linux kernel. He begins with a little background on his efforts:

"'A long discussion for sometime has centred on just what interactivity is. I did not set out to define interactivity and then modify the scheduler policy to match that definition. Instead what I have concentrated on is improving the overall feel of using 2.6 on a desktop (gui or non). The area I concentrated on was that of tasks that it would make a noticable difference when there was sufficient delay or jitter between the time they wake up and the time they are scheduled. This makes a palpable difference in the form of audio skips in playback or jerky mouse movement. The effect of increasing loads on the system and maintaining fairness must also be addressed when tackling these.'

"Con goes on to examine how Ingo Molnar's O(1) scheduler handles interactivity, the problems it introduces, and a thorough explanation of what's been done so far to try and make the desktop feel better..."

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