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Date: Mon, 30 Jul 2001 14:50:21 -0400 (EDT)
From: Ingo Molnar <mingo@redhat.com>
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To: <kuznet@ms2.inr.ac.ru>
cc: Linus Torvalds <torvalds@transmeta.com>, <andrea@suse.de>,
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        <davem@redhat.com>
Subject: Re: [PATCH] [IMPORTANT] Re: 2.4.7 softirq incorrectness.
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> > I think the latency issue was really the fact that we weren't always
> > running softirqs in a timely fashion after they had been disabled by a
> > "disable_bh()". That is fixed with the new softirq stuff, regardless of
> > the other issues.

nope. i observed latency issues with restart + ksoftirqd as well. [when i
first saw these latency problems i basically had ksoftirqd implemented
independently from your patch, and threw the idea away because it was
insufficient from the latency point of view.] Those latencies are harder
to observe because they are not 1/HZ anymore but several hundred millisecs
at most. Plus, like i said previously, pushing IRQ context work into a
scheduler-level context 'feels' incorrect to me - it only makes the
latencies less visible. I'll do some measurements.

	Ingo

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