Re: [patch 1/4] - Potential performance bottleneck for Linxu TCP

From: Nick Piggin
Date: Thu Nov 30 2006 - 05:08:56 EST


Evgeniy Polyakov wrote:
On Thu, Nov 30, 2006 at 08:35:04AM +0100, Ingo Molnar (mingo@xxxxxxx) wrote:

Doesn't the provided solution is just a in-kernel variant of the
SCHED_FIFO set from userspace? Why kernel should be able to mark some
users as having higher priority?
What if workload of the system is targeted to not the maximum TCP
performance, but maximum other-task performance, which will be broken
with provided patch.

David's line of thinking for a solution sounds better to me. This patch
does not prevent the process from being preempted (for potentially a long
time), by any means.

--
SUSE Labs, Novell Inc.
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