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Re: [PATCH v2] block/file-posix: Optimize for macOS
From: |
Akihiko Odaki |
Subject: |
Re: [PATCH v2] block/file-posix: Optimize for macOS |
Date: |
Tue, 9 Mar 2021 00:37:35 +0900 |
2021年3月9日(火) 0:17 Stefan Hajnoczi <stefanha@redhat.com>:
>
> The live migration compatibility issue is still present. Migrating to
> another host might not work if the block limits are different.
>
> Here is an idea for solving it:
>
> Modify include/hw/block/block.h:DEFINE_BLOCK_PROPERTIES_BASE() to
> support a new value called "host". The default behavior remains
> unchanged for live migration compatibility but now you can use "host" if
> you know it's okay but don't care about migration compatibility.
>
> The downside to this approach is that users must explicitly say
> something like --drive ...,opt_io_size=host. But it's still better than
> the situation we have today where user must manually enter values for
> their disk.
>
> Does this sound okay to everyone?
>
> Stefan
I wonder how that change affects other block drivers implementing
bdrv_probe_blocksizes. As far as I know, the values they report are
already used by default, which is contrary to the default not being
"host".
Regards,
Akihiko Odaki
- [PATCH v2] block/file-posix: Optimize for macOS, Akihiko Odaki, 2021/03/05
- Re: [PATCH v2] block/file-posix: Optimize for macOS, no-reply, 2021/03/05
- Re: [PATCH v2] block/file-posix: Optimize for macOS, Stefan Hajnoczi, 2021/03/08
- Re: [PATCH v2] block/file-posix: Optimize for macOS,
Akihiko Odaki <=
- Re: [PATCH v2] block/file-posix: Optimize for macOS, Akihiko Odaki, 2021/03/08
- Re: [PATCH v2] block/file-posix: Optimize for macOS, Kevin Wolf, 2021/03/09
- Re: [PATCH v2] block/file-posix: Optimize for macOS, Daniel P . Berrangé, 2021/03/09
- Re: [PATCH v2] block/file-posix: Optimize for macOS, Kevin Wolf, 2021/03/09
- Re: [PATCH v2] block/file-posix: Optimize for macOS, Akihiko Odaki, 2021/03/09
- Re: [PATCH v2] block/file-posix: Optimize for macOS, Stefan Hajnoczi, 2021/03/10