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Date:   Tue, 24 Jan 2023 17:44:06 -0800
From:   Jakub Kicinski <kuba@kernel.org>
To:     Aleksander Dutkowski <adutkowski@gmail.com>
Cc:     netdev@vger.kernel.org
Subject: Re: possible macvlan packet loss
Message-ID: <20230124174406.4dbe97c5@kernel.org>
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On Tue, 24 Jan 2023 16:14:03 +0100 Aleksander Dutkowski wrote:
> I wonder what is the best way to test and measure the queue fulfillment?
> We can do simple printf when the queue is full, but maybe there are
> some tools or techniques I'm not aware of that we can use?

In terms of debugging tools bpftrace (potentially combined with kprobes)
will change your life.