On 03/03/2016 01:13 PM, Preston L. Bannister wrote:
> Scanning the same volume from within the instance still gets the same > ~450MB/s that I saw before.Hmmm, with iSCSI inbetween that could be the TCP memcpy limitation. Measuring iSCSI in isolation is next on my list. Both on the physical host, and in the instance. (Now to find that link to the iSCSI test, again...)
Based on earlier comments it appears that you're using the qemu built-in iSCSI initiator.
Assuming that's the case, maybe it would make sense to do a test run with the in-kernel iSCSI code and take qemu out of the picture?
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