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From: Sebastian Parschauer <sebastian.riemer@profitbricks.com>
To: neilb@suse.de
Cc: linux-raid@vger.kernel.org,
	Sebastian Parschauer <sebastian.riemer@profitbricks.com>
Subject: Re: [RFC PATCH 0/4] md/mdadm: introduce request function mode support
Date: Tue, 17 Jun 2014 15:20:53 +0200	[thread overview]
Message-ID: <53A040B5.5050008@profitbricks.com> (raw)
In-Reply-To: <1401901802-16296-1-git-send-email-sebastian.riemer@profitbricks.com>

Hi Neil,

have you already had the time to look at these patches?

We have this in production with cfq scheduler already on two storage
servers and customers noticed a huge performance boost. Also our
monitoring shows higher and smoother iop numbers.

Cheers,
Sebastian


On 04.06.2014 19:09, Sebastian Parschauer wrote:
> Patches apply to linux v3.15-rc8 and mdadm master commit 8a3544f895.
> 
> Florian-Ewald Mueller (3):
>       md: complete bio accounting and add io_latency extension
>       md: introduce request function mode support
>       md: handle IO latency accounting in rqfn mode
> 
> Sebastian Parschauer (1):
>       mdadm: introduce '--use-requestfn' create/assembly option
> 


  parent reply	other threads:[~2014-06-17 13:20 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-28 13:04 [RFC] Process requests instead of bios to use a scheduler Sebastian Parschauer
2014-06-01 23:32 ` NeilBrown
2014-06-02  9:51   ` Sebastian Parschauer
2014-06-02 10:20     ` NeilBrown
2014-06-02 11:12       ` Sebastian Parschauer
2014-06-04 17:09       ` [RFC PATCH 0/4] md/mdadm: introduce request function mode support Sebastian Parschauer
2014-06-04 17:09         ` [RFC PATCH 1/4] md: complete bio accounting and add io_latency extension Sebastian Parschauer
2014-06-04 17:10         ` [RFC PATCH 2/4] md: introduce request function mode support Sebastian Parschauer
2014-06-04 17:10         ` [RFC PATCH 3/4] md: handle IO latency accounting in rqfn mode Sebastian Parschauer
2014-06-04 17:10         ` [RFC PATCH 4/4] mdadm: introduce '--use-requestfn' create/assembly option Sebastian Parschauer
2014-06-17 13:20         ` Sebastian Parschauer [this message]
     [not found]           ` <CAH3kUhEK26+4KryoReosMt654-vcrkkgkxaW5tKkFRDBqgX82w@mail.gmail.com>
     [not found]             ` <53A14513.20902@profitbricks.com>
2014-06-18 13:57               ` [RFC PATCH 0/4] md/mdadm: introduce request function mode support Roberto Spadim
2014-06-18 14:43                 ` Sebastian Parschauer
2014-06-24  7:09           ` NeilBrown

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