Re: virtio-blk performance and MSI

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Christoph Hellwig <hch <at> lst.de> writes:

> 
> 
> 	File size set to 131072 KB
> 	Record Size 4 KB
> 	O_DIRECT feature enabled
> 	Command line used: iozone -s 128m -r 4k -I -f /dev/sdb
is /dev/sdb a local disk, network drive attached via FC/IB, something else?
What is the command line used to invoke qemu? More specifically, when running
the benchmark in the guest, how does the host device is being opened (cache=?)

Thanks very much,
Eran
 

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