Re: scheduler ignores need_resched flag in 2.2.x and 2.3.x?

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Tue Mar 21 2000 - 07:33:25 EST


> This is what makes Ingo's latency patch less dangerous: need_resched is hard
> to set. Your scenario requires that an interrupt routine, interrupting
> kernel mode, set needs_resched. Where does this happen?

A process wake from interrupt state - eg a network event. Its not actually
that uncommon. The window is small however so it isnt likely to get hit
much.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Thu Mar 23 2000 - 21:00:32 EST