From: Jens Axboe <axboe@kernel.dk>
To: Rebecca Cran <rebecca@bluestop.org>, Sitsofe Wheeler <sitsofe@gmail.com>
Cc: fio <fio@vger.kernel.org>
Subject: Re: Windows and TRIM support - files, not devices
Date: Mon, 30 Apr 2018 14:24:21 -0600 [thread overview]
Message-ID: <9495a910-beb6-76dd-2c1e-3f67c23ef59f@kernel.dk> (raw)
In-Reply-To: <40890e19-4484-2265-8b24-ef98b6f61717@bluestop.org>
On 4/20/18 9:46 AM, Rebecca Cran wrote:
> On 04/20/18 01:15, Sitsofe Wheeler wrote:
>
>> On 28 January 2017 at 01:05, Rebecca Cran <rebecca@bluestop.org> wrote:
>>> I've been looking at the TRIM support in Windows 8 and newer, and have come
>>> across a potential problem. Other OSes use TRIM on a physical/block device,
>>> but Windows only provides support for TRIM on files.
>>
>> How far did you get with this?
>
> I didn't do any more work on it after realizing it only worked on files.
Missed this originally - files is totally fine, for what it's worth, on
Linux we could map this to hole punching too. So I don't think that's
a show stopper at all, it'd be perfectly possible to define trim based
workloads just on files. In fact, that's more flexible that what we
currently support on Linux.
--
Jens Axboe
prev parent reply other threads:[~2018-04-30 20:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-28 1:05 Windows and TRIM support - files, not devices Rebecca Cran
2017-01-28 10:13 ` Sitsofe Wheeler
2017-01-28 13:01 ` Sitsofe Wheeler
2017-01-29 1:54 ` Rebecca Cran
2018-04-20 7:15 ` Sitsofe Wheeler
2018-04-20 15:46 ` Rebecca Cran
2018-04-30 20:24 ` Jens Axboe [this message]
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