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From: Bart Van Assche <bart.vanassche@sandisk.com>
To: Paolo Valente <paolo.valente@linaro.org>,
	<ksummit-discuss@lists.linux-foundation.org>
Cc: b.zolnierkie@samsung.com, Jens Axboe <axboe@fb.com>,
	hare@suse.de, Tejun Heo <tj@kernel.org>,
	osandov@osandov.com, hch@lst.de
Subject: Re: [Ksummit-discuss] [TECH TOPIC] Addressing long-standing high-latency problems related to I/O
Date: Wed, 21 Sep 2016 07:30:10 -0700	[thread overview]
Message-ID: <8adc094c-bf02-ecc3-67ac-7ffac3ef2491@sandisk.com> (raw)
In-Reply-To: <E9D83DEA-B8D1-4E51-AF9C-8C67CFEDCE39@linaro.org>

On 09/16/16 00:55, Paolo Valente wrote:
> Linux systems suffers from long-standing high-latency problems, at
> system and application level, related to I/O.

Hello Paolo,

Are you aware of Jens' throttled background buffered writeback work? If 
not, can you repeat your measurements against a kernel on which these 
patches have been applied? See also 
http://www.spinics.net/lists/linux-fsdevel/msg101391.html.

Thanks,

Bart.

  parent reply	other threads:[~2016-09-21 14:30 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-16  7:55 [Ksummit-discuss] [TECH TOPIC] Addressing long-standing high-latency problems related to I/O Paolo Valente
2016-09-16  8:24 ` Greg KH
2016-09-16  8:59   ` Linus Walleij
2016-09-16  9:10     ` Bart Van Assche
2016-09-16 11:24       ` Linus Walleij
2016-09-16 11:46         ` Arnd Bergmann
2016-09-16 13:10           ` Paolo Valente
2016-09-16 13:36           ` Linus Walleij
2016-09-16 11:53         ` Bart Van Assche
2016-09-22  9:18     ` Ulf Hansson
2016-09-22 11:06       ` Linus Walleij
2016-09-16 15:15   ` James Bottomley
2016-09-16 18:48     ` Paolo Valente
2016-09-16 19:36       ` James Bottomley
2016-09-16 20:13         ` Paolo Valente
2016-09-19  8:17           ` Jan Kara
2016-09-17 10:31         ` Linus Walleij
2016-09-21 13:51         ` Grant Likely
2016-09-21 14:30 ` Bart Van Assche [this message]
2016-09-21 14:37   ` Paolo Valente

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