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Subject: Re: [PATCH v1 2/6] fs: use on-stack-bio if backing device has
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To: Minchan Kim <minchan@kernel.org>
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From: Jens Axboe <axboe@kernel.dk>
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Date: Mon, 14 Aug 2017 09:38:06 -0600
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On 08/14/2017 09:31 AM, Minchan Kim wrote:
>> Secondly, generally you don't have slow devices and fast devices
>> intermingled when running workloads. That's the rare case.
> 
> Not true. zRam is really popular swap for embedded devices where
> one of low cost product has a really poor slow nand compared to
> lz4/lzo [de]comression.

I guess that's true for some cases. But as I said earlier, the recycling
really doesn't care about this at all. They can happily coexist, and not
step on each others toes.

-- 
Jens Axboe