[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Re: Loopback Performance (Was Re: Disk naming)
Mark Williamson wrote: I meant looking up the data blocks in the inode. You may be hitting triple-indirect blocks twice.On Friday 15 April 2005 23:11, Anthony Liguori wrote:I'm sorry but I don't follow this. The inodes for the filesystem inside it only need to be looked up by the guest filesystem driver. The inode for the disk file only needs to be looked up once in dom0 when the file is opened (the metadata will then be cached). Am I missing something? I don't know enough about the kernel level caching to say anything definitive. I do have some ideas who to ask though. Regards, Anthony Liguori The data you've collected are interesting though. I wonder if searching the LKML archives might yield any interesting discussion about the loop device's behaviour.Cheers, Mark _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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