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SubjectRe: [PATCH] 2.5.72 O(1) interactivity bugfix
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On Wed, 2003-06-18 at 07:43, Con Kolivas wrote:

> While messing with the interactivity code I found what appears to be an
> uninitialised variable (p->sleep_avg), which is responsible for all the
> boost/penalty in the scheduler.

The variable isn't uninitialized, it is inherited from the parent.

Recall that the task_struct of the new child starts off as a duplicate
of the parent's. If the variables are not explicitly set, they remain
the same as the parent's.

So this patch ends up resetting the sleep_avg to zero, instead of being
the same as the parent, which may or may not result in better
performance.

Robert Love

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