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From: Du Rui <durui@linux.alibaba.com>
To: gscrivan@redhat.com
Cc: durui@linux.alibaba.com, snitzer@kernel.org,
	linux-kernel@vger.kernel.org, dm-devel@redhat.com,
	alexl@redhat.com, hsiangkao@linux.alibaba.com, agk@redhat.com
Subject: Re: [dm-devel] dm overlaybd: targets mapping OverlayBD image
Date: Fri, 26 May 2023 18:28:56 +0800	[thread overview]
Message-ID: <20230526102855.36774-1-durui@linux.alibaba.com> (raw)
In-Reply-To: <87r0r6ywri.fsf@redhat.com>

Hi Giuseppe,

> The current OCI format, with some tweaks like (e)stargz or zstd:chunked,
> already make its content addressable and a client can retrieve only the
> subset of the files that are needed.  At the same time we maintain the
> simplicity of a tarball and it won't break existing clients.

Yes, I believe backward compatibility is very important. That's why we
have another design called foci (fast oci). It realize a virtual block
device from gzip image blobs. See the following link for details if interested.
https://github.com/containerd/accelerated-container-image/blob/main/docs/FASTOCI.md

--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel


WARNING: multiple messages have this Message-ID (diff)
From: Du Rui <durui@linux.alibaba.com>
To: gscrivan@redhat.com
Cc: agk@redhat.com, alexl@redhat.com, dm-devel@redhat.com,
	durui@linux.alibaba.com, hsiangkao@linux.alibaba.com,
	linux-kernel@vger.kernel.org, snitzer@kernel.org
Subject: Re: Re: dm overlaybd: targets mapping OverlayBD image
Date: Fri, 26 May 2023 18:28:56 +0800	[thread overview]
Message-ID: <20230526102855.36774-1-durui@linux.alibaba.com> (raw)
In-Reply-To: <87r0r6ywri.fsf@redhat.com>

Hi Giuseppe,

> The current OCI format, with some tweaks like (e)stargz or zstd:chunked,
> already make its content addressable and a client can retrieve only the
> subset of the files that are needed.  At the same time we maintain the
> simplicity of a tarball and it won't break existing clients.

Yes, I believe backward compatibility is very important. That's why we
have another design called foci (fast oci). It realize a virtual block
device from gzip image blobs. See the following link for details if interested.
https://github.com/containerd/accelerated-container-image/blob/main/docs/FASTOCI.md

  parent reply	other threads:[~2023-05-29  4:52 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-19 10:27 [dm-devel] [RFC] dm overlaybd: targets mapping OverlayBD image Du Rui
2023-05-19 10:27 ` Du Rui
2023-05-19 13:16 ` kernel test robot
2023-05-19 14:17 ` kernel test robot
2023-05-19 14:17 ` kernel test robot
2023-05-19 14:17 ` kernel test robot
2023-05-19 20:10 ` kernel test robot
2023-05-19 20:34 ` kernel test robot
2023-05-23 17:28 ` [dm-devel] " Mike Snitzer
2023-05-23 17:28   ` Mike Snitzer
2023-05-24  0:56   ` [dm-devel] " Gao Xiang
2023-05-24  0:56     ` Gao Xiang
2023-05-24  6:43   ` Alexander Larsson
2023-05-24  6:43     ` Alexander Larsson
2023-05-24  7:13     ` [dm-devel] " Gao Xiang
2023-05-24  7:13       ` Gao Xiang
2023-05-24  8:11       ` [dm-devel] " Giuseppe Scrivano
2023-05-24  8:11         ` Giuseppe Scrivano
2023-05-24  8:26         ` [dm-devel] " Gao Xiang
2023-05-24  8:26           ` Gao Xiang
2023-05-24 10:48           ` [dm-devel] " Giuseppe Scrivano
2023-05-24 10:48             ` Giuseppe Scrivano
2023-05-24 11:06             ` [dm-devel] " Gao Xiang
2023-05-24 11:06               ` Gao Xiang
2023-05-26 10:28         ` Du Rui [this message]
2023-05-26 10:28           ` Du Rui
2023-05-26 10:26     ` [dm-devel] " Du Rui
2023-05-26 10:26       ` Du Rui
2023-05-26 16:43       ` [dm-devel] " Gao Xiang
2023-05-26 16:43         ` Gao Xiang
2023-05-27  3:13         ` [dm-devel] " Du Rui
2023-05-27  3:13           ` Du Rui
2023-05-27  4:12           ` [dm-devel] " Gao Xiang
2023-05-27  4:12             ` Gao Xiang
2023-05-24  6:59   ` [dm-devel] " Du Rui
2023-05-24  6:59     ` Du Rui
2023-05-26 10:25   ` [dm-devel] " Du Rui
2023-05-26 10:25     ` Du Rui
2023-05-24  7:24 ` [dm-devel] [RFC PATCH v2] " Du Rui
2023-05-24  7:24   ` Du Rui
2023-05-24  7:40 ` [dm-devel] [RFC PATCH v3] " Du Rui
2023-05-24  7:40   ` Du Rui
2023-05-24 15:37   ` kernel test robot
2023-05-24 16:14   ` kernel test robot

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