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    SubjectRe: [RFC][PATCH 1/1] cxgb3i: cxgb3 iSCSI initiator
     > Why show these special connections if the user cannot interact with or
    > shape the stream at all like normal ones?

    So that an admin can see what connections are open, so that the stack
    doesn't try to reuse the same 4-tuple for another connection, etc, etc.

    > And I even wonder, these days, if you probably get %90 or more of the
    > gain these "optimized" iSCSI connections obtain from things like LRO.

    Yes, that's the question -- are stateless offloads (plus CRC32C in the
    CPU etc) going to give good enough performance that the whole TCP
    offload exercise is pointless? The only issue is that I don't see how
    to avoid the fundamental 3X increase in memory bandwidth that is chewed
    up if the NIC can't do direct placement.

    - R.

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      Last update: 2008-08-11 18:11    [W:0.019 / U:105.036 seconds]
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