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Re: [RFC PATCH 0/9] block/curl: Add caching of data downloaded from the
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [RFC PATCH 0/9] block/curl: Add caching of data downloaded from the remote server |
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Date: |
Wed, 19 Aug 2020 15:11:37 +0100 |
On Tue, Aug 18, 2020 at 12:08:36PM +0100, David Edmondson wrote:
> When using qemu-img to convert an image that is hosted on an HTTP
> server to some faster local (or pseudo-local) storage, the overall
> performance can be improved by reading data from the HTTP server in
> larger blocks and by caching and re-using blocks already read. This
> set of patches implements both of these, and adds a further patch
> allowing an offset to be added to all of the HTTP requests.
Hi David,
Thanks for posting this! Kevin and Max are the maintainers in this area,
but I wanted to ask an initial question:
Is caching curl-specific or could this be implemented as a block filter
driver so that it can be stacked on top of other network protocols too?
Thanks,
Stefan
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- [RFC PATCH 6/9] block/curl: Cache downloaded blocks, (continued)
- [RFC PATCH 6/9] block/curl: Cache downloaded blocks, David Edmondson, 2020/08/18
- [RFC PATCH 8/9] block/curl: Allow 16 sockets/ACB, David Edmondson, 2020/08/18
- [RFC PATCH 4/9] block/curl: Perform IO in fixed size chunks, David Edmondson, 2020/08/18
- [RFC PATCH 1/9] block/curl: Add an 'offset' parameter, affecting all range requests, David Edmondson, 2020/08/18
- [RFC PATCH 2/9] block/curl: Remove readahead support, David Edmondson, 2020/08/18
- [RFC PATCH 5/9] block/curl: Allow the blocksize to be specified by the user, David Edmondson, 2020/08/18
- [RFC PATCH 3/9] block/curl: Tracing, David Edmondson, 2020/08/18
- [RFC PATCH 9/9] block/curl: Add readahead support, David Edmondson, 2020/08/18
- Re: [RFC PATCH 0/9] block/curl: Add caching of data downloaded from the remote server,
Stefan Hajnoczi <=