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Message-ID: <541019A8.3070005@dev.mellanox.co.il>
Date: Wed, 10 Sep 2014 12:28:08 +0300
From: Sagi Grimberg <sagig@dev.mellanox.co.il>
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To: Haggai Eran <haggaie@mellanox.com>, Roland Dreier <roland@kernel.org>,
        Latchesar Ionkov <lionkov@lanl.gov>
CC: Or Gerlitz <gerlitz.or@gmail.com>,
        "linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Sagi Grimberg <sagig@mellanox.com>,
        Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v1 for-next 00/16] On demand paging
References: <1404377069-20585-1-git-send-email-haggaie@mellanox.com> <5405D2D8.1040700@mellanox.com> <CAJ3xEMj8BJLJvetNoqGOFhqeJHupEd=kbnFeO_Na=1ZYbvBk9g@mail.gmail.com> <CAOha14xthZHSpS_T+XRgZcPqwaZvtMw0iGTzKjTyjdBuLhJ4Eg@mail.gmail.com> <CAG4TOxO54LJgSjFFDge4X9OpaBNrM1z=iGSV0GEY+0iFFSs9sw@mail.gmail.com> <540F0CD8.9070002@mellanox.com> <54101123.2080208@mellanox.com>
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On 9/10/2014 11:51 AM, Haggai Eran wrote:
<SNIP>
>
> The main benefits of ODP is the simplified programming model, simplified
> management, and avoiding worst-case memory commitment.
> For example, we were able to run multiple concurrent instances of iSER
> targets, allowing over-commitment that otherwise wouldn’t be possible.

Just wanted to add that we're talking about TGT which is a user-space 
target, thus it's RDMA memory regions were allowed to be pageable (i.e. 
not pinned).

Cheers,
Sagi.