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From: Boaz Harrosh <boaz@plexistor.com>
To: Austin S Hemmelgarn <ahferroin7@gmail.com>,
	"Elliott, Robert (Persistent Memory)" <elliott@hpe.com>,
	"dan.j.williams@intel.com" <dan.j.williams@intel.com>
Cc: "Knippers, Linda" <linda.knippers@hpe.com>,
	"util-linux@vger.kernel.org" <util-linux@vger.kernel.org>,
	"Kani, Toshimitsu" <toshi.kani@hpe.com>,
	"linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>,
	"linux-nvdimm@lists.01.org" <linux-nvdimm@ml01.01.org>
Subject: Re: mkfs.btrfs cannot find rotational file for SSD detection for a pmem device
Date: Wed, 09 Sep 2015 15:12:41 +0300	[thread overview]
Message-ID: <55F02239.3090809@plexistor.com> (raw)
In-Reply-To: <55F017CE.1090505@gmail.com>

On 09/09/2015 02:28 PM, Austin S Hemmelgarn wrote:
> On 2015-09-08 16:00, Elliott, Robert (Persistent Memory) wrote:
<>

> this may actually make things slower (the particular effect of SSD mode 
> is that it tries to spread allocations out as much as possible, as this 
> helps with wear-leveling on many SSD's).
> 

For DRAM based NvDIMM it matters not at all. For Flash based or the new
3d Xpoint it is a plus, so no harm in leaving it in

Just my 1.7 cents
Boaz


  reply	other threads:[~2015-09-09 12:12 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-06 17:51 mkfs.btrfs cannot find rotational file for SSD detection for a pmem device Elliott, Robert (Persistent Memory)
2015-09-08 12:56 ` Austin S Hemmelgarn
2015-09-08 20:00   ` Elliott, Robert (Persistent Memory)
2015-09-09 11:28     ` Austin S Hemmelgarn
2015-09-09 12:12       ` Boaz Harrosh [this message]
2015-09-09 12:40         ` Austin S Hemmelgarn
2015-09-09 13:07           ` Boaz Harrosh

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