Re: [Gluster-devel] zero-copy readv

[Amar Tumballi]

> > [1] - recent patches to handle RPC read-ahead may involve small data
> > copy from header to data buffer, but surely not very high.
>
> Amar - note that the current infrastructure present for 0-copy RDMA
> might not be sufficient for GFAPI's 0-copy. A glfs_readv() request from
> the app can come as a vector of memory pointers (and not a contiguous
> iobuf) and therefore require storing an iovec/count as well. This might
> also mean we need to exercise the scatter-gather aspects of the verbs API.

Got it.. Thats right.

Regards,
Amar