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Date:   Mon, 18 Oct 2021 03:20:34 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     Jens Axboe <axboe@kernel.dk>
Cc:     linux-block@vger.kernel.org
Subject: Re: [PATCH 5/6] io_uring: utilize the io batching infrastructure for
 more efficient polled IO
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References: <20211017020623.77815-1-axboe@kernel.dk>
 <20211017020623.77815-6-axboe@kernel.dk>
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On Sat, Oct 16, 2021 at 08:06:22PM -0600, Jens Axboe wrote:
> Wire up using an io_comp_batch for f_op->iopoll(). If the lower stack
> supports it, we can handle high rates of polled IO more efficiently.
> 
> This raises the single core efficiency on my system from ~6.1M IOPS to
> ~6.6M IOPS running a random read workload at depth 128 on two gen2
> Optane drives.
> 
> Signed-off-by: Jens Axboe <axboe@kernel.dk>

Looks good,

Reviewed-by: Christoph Hellwig <hch@lst.de>