netdev - Re: [PATCH net-next] strparser: Add __strp

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Date:   Wed, 06 Jun 2018 14:08:20 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     doronrk@...com
Cc:     davejwatson@...com, tom@...ntonium.net, vakul.garg@....com,
        netdev@...r.kernel.org
Subject: Re: [PATCH net-next] strparser: Add __strp_unpause and use it in
 ktls.

From: Doron Roberts-Kedes <doronrk@...com>
Date: Wed, 6 Jun 2018 09:33:28 -0700

> strp_unpause queues strp_work in order to parse any messages that
> arrived while the strparser was paused. However, the process invoking
> strp_unpause could eagerly parse a buffered message itself if it held
> the sock lock.
> 
> __strp_unpause is an alternative to strp_pause that avoids the scheduling
> overhead that results when a receiving thread unpauses the strparser
> and waits for the next message to be delivered by the workqueue thread.
> 
> This patch more than doubled the IOPS achieved in a benchmark of NBD
> traffic encrypted using ktls.
> 
> Signed-off-by: Doron Roberts-Kedes <doronrk@...com>

Applied, thank you.