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Re: [Qemu-devel] [RFC 1/3] block: Add ImageRotationalInfo
From: |
Alberto Garcia |
Subject: |
Re: [Qemu-devel] [RFC 1/3] block: Add ImageRotationalInfo |
Date: |
Mon, 27 May 2019 15:53:59 +0200 |
User-agent: |
Notmuch/0.18.2 (http://notmuchmail.org) Emacs/24.4.1 (i586-pc-linux-gnu) |
On Mon 27 May 2019 03:44:59 PM CEST, Anton Nefedov wrote:
>> I think in general optimizing for SSDs should probably be the
>> default. HDDs are slow anyway, so whoever uses them probably doesn’t
>> care about performance too much anyway...? Whereas people using SSDs
>> probably do. But as I said, we can and should always make a separate
>> decision for each case.
>
> Overall it looks good to me but I wonder how do we ensure both
> variants are test covered? Need a blockdev option to enforce the mode?
Max talked about a 30% slowdown on HDDs so I suppose it makes sense to
have an option to change that even if we optimize for SSDs by default.
Berto
- [Qemu-devel] [RFC 0/3] block: Inquire images’ rotational info, Max Reitz, 2019/05/24
- [Qemu-devel] [RFC 3/3] qcow2: Evaluate rotational info, Max Reitz, 2019/05/24
- [Qemu-devel] [RFC 1/3] block: Add ImageRotationalInfo, Max Reitz, 2019/05/24
- Re: [Qemu-devel] [RFC 1/3] block: Add ImageRotationalInfo, Alberto Garcia, 2019/05/26
- Re: [Qemu-devel] [RFC 1/3] block: Add ImageRotationalInfo, Max Reitz, 2019/05/27
- Re: [Qemu-devel] [RFC 1/3] block: Add ImageRotationalInfo, Alberto Garcia, 2019/05/27
- Re: [Qemu-devel] [RFC 1/3] block: Add ImageRotationalInfo, Max Reitz, 2019/05/27
- Re: [Qemu-devel] [RFC 1/3] block: Add ImageRotationalInfo, Anton Nefedov, 2019/05/27
- Re: [Qemu-devel] [RFC 1/3] block: Add ImageRotationalInfo, Max Reitz, 2019/05/27
- Re: [Qemu-devel] [RFC 1/3] block: Add ImageRotationalInfo,
Alberto Garcia <=
Re: [Qemu-devel] [RFC 1/3] block: Add ImageRotationalInfo, Kevin Wolf, 2019/05/29
[Qemu-devel] [RFC 2/3] file-posix: Inquire rotational status, Max Reitz, 2019/05/24
Re: [Qemu-devel] [RFC 0/3] block: Inquire images’ rotational info, Eric Blake, 2019/05/24