From: Akira Hayakawa <ruby.wktk@gmail.com>
To: bvanassche@acm.org
Cc: thornber@redhat.com, snitzer@redhat.com,
gregkh@linuxfoundation.org,
driverdev-devel@linuxdriverproject.org,
linux-kernel@vger.kernel.org, dm-devel@redhat.com
Subject: Re: [dm-devel] [PATCH v2] staging: writeboost: Add dm-writeboost
Date: Fri, 12 Dec 2014 18:35:32 +0900 [thread overview]
Message-ID: <548AB6E4.2020302@gmail.com> (raw)
In-Reply-To: <548AB172.4000103@acm.org>
On 12/12/14 6:12 PM, Bart Van Assche wrote:
> This is the first time I see someone claiming that reducing the request size improves performance. I don't know any SSD model for which splitting requests improves performance.
Writeboost batches number of writes into a log (that is 512KB large) and submits to SSD
which maximizes the throughput and the lifetime of the SSD.
I think you fairly misunderstand how Writeboost works.
- Akira
WARNING: multiple messages have this Message-ID (diff)
From: Akira Hayakawa <ruby.wktk@gmail.com>
To: bvanassche@acm.org
Cc: snitzer@redhat.com, gregkh@linuxfoundation.org,
driverdev-devel@linuxdriverproject.org, thornber@redhat.com,
linux-kernel@vger.kernel.org, dm-devel@redhat.com
Subject: Re: [dm-devel] [PATCH v2] staging: writeboost: Add dm-writeboost
Date: Fri, 12 Dec 2014 18:35:32 +0900 [thread overview]
Message-ID: <548AB6E4.2020302@gmail.com> (raw)
In-Reply-To: <548AB172.4000103@acm.org>
On 12/12/14 6:12 PM, Bart Van Assche wrote:
> This is the first time I see someone claiming that reducing the request size improves performance. I don't know any SSD model for which splitting requests improves performance.
Writeboost batches number of writes into a log (that is 512KB large) and submits to SSD
which maximizes the throughput and the lifetime of the SSD.
I think you fairly misunderstand how Writeboost works.
- Akira
next prev parent reply other threads:[~2014-12-12 9:35 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-10 11:42 [PATCH v2] staging: writeboost: Add dm-writeboost Akira Hayakawa
2014-12-11 15:26 ` Mike Snitzer
2014-12-12 0:42 ` Akira Hayakawa
2014-12-12 9:12 ` [dm-devel] " Bart Van Assche
2014-12-12 9:35 ` Akira Hayakawa [this message]
2014-12-12 9:35 ` Akira Hayakawa
2014-12-12 11:41 ` Bart Van Assche
2014-12-12 22:18 ` Spelic
2014-12-13 7:08 ` Jianjian Huo
2014-12-12 14:24 ` Joe Thornber
2014-12-12 14:24 ` Joe Thornber
2014-12-12 15:09 ` Akira Hayakawa
2014-12-12 15:09 ` Akira Hayakawa
2014-12-13 6:45 ` [dm-devel] " Jianjian Huo
2014-12-13 6:45 ` Jianjian Huo
2014-12-13 14:07 ` Akira Hayakawa
2014-12-13 14:07 ` Akira Hayakawa
2014-12-14 2:12 ` Akira Hayakawa
2014-12-14 2:12 ` Akira Hayakawa
2014-12-14 2:46 ` Jianjian Huo
2014-12-14 2:46 ` Jianjian Huo
2014-12-14 3:22 ` Akira Hayakawa
2014-12-14 3:22 ` Akira Hayakawa
2014-12-14 3:00 ` Akira Hayakawa
2014-12-14 3:00 ` Akira Hayakawa
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