linux-kernel - Re: [PATCH 6/6] writeback: throttle buffered writeback

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Date:	Tue, 22 Mar 2016 16:12:04 -0400
From:	Jeff Moyer <jmoyer@...hat.com>
To:	Jens Axboe <axboe@...com>
Cc:	<linux-kernel@...r.kernel.org>, <linux-fsdevel@...r.kernel.org>,
	<linux-block@...r.kernel.org>
Subject: Re: [PATCH 6/6] writeback: throttle buffered writeback

Hi, Jens,

Jens Axboe <axboe@...com> writes:

> If the device has write back caching, 'wb_cache_delay' delays by
> this amount of usecs when a write completes before allowing more.

What's the reason behind that?

Thanks!
Jeff