netdev - Re: [PATCH bpf-next v2] libbpf: add API to consume the perf ring buffer content

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Message-ID: <20200526211529.GB3853@pc-9.home>
Date:   Tue, 26 May 2020 23:15:29 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Eelco Chaudron <echaudro@...hat.com>
Cc:     bpf@...r.kernel.org, davem@...emloft.net, netdev@...r.kernel.org,
        ast@...nel.org, kafai@...com, songliubraving@...com, yhs@...com,
        andriin@...com, toke@...hat.com
Subject: Re: [PATCH bpf-next v2] libbpf: add API to consume the perf ring
 buffer content

On Tue, May 26, 2020 at 11:21:42AM +0200, Eelco Chaudron wrote:
> This new API, perf_buffer__consume, can be used as follows:
> - When you have a perf ring where wakeup_events is higher than 1,
>   and you have remaining data in the rings you would like to pull
>   out on exit (or maybe based on a timeout).
> - For low latency cases where you burn a CPU that constantly polls
>   the queues.
> 
> Signed-off-by: Eelco Chaudron <echaudro@...hat.com>

Applied, thanks!