netdev - Re: [PATCH net-next] sch_netem: faster rb tree removal

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Message-ID: <56dd80dc-6d3e-4063-a439-f8938c65c384@gmail.com>
Date:   Mon, 25 Sep 2017 15:52:39 -0600
From:   David Ahern <dsahern@...il.com>
To:     David Miller <davem@...emloft.net>
Cc:     eric.dumazet@...il.com, netdev@...r.kernel.org,
        stephen@...workplumber.org
Subject: Re: [PATCH net-next] sch_netem: faster rb tree removal

On 9/25/17 2:11 PM, David Miller wrote:
> From: David Ahern <dsahern@...il.com>
> Date: Mon, 25 Sep 2017 10:14:23 -0600
> 
>> I made a simple program this morning and ran it under perf.
> 
> If possible please submit this for selftests.
> 

It is more of a microbenchmark of options to flush an rbtree than a
self-test. Further, it relies on the tools/lib/rbtree.c versus
lib/rbtree.c. The tools/lib version was imported by Arnaldo in July 2015
and is a out of date, though it is good enough to show the intent w.r.t.
flushing options.