Last week, Dominique asked about this:
/* FIXME: these were the values used in Mooshika */
SVCXPRT *c_xprt = svc_rdma_create(l_xprt, 8*1024, 4*8*1024,
SVC_XPRT_FLAG_NONE);
Those are the send and recv buffer sizes, respectively, that
Dominique had chosen. I'd moved them from ntirpc into ganesha
so that they could prospectively be configurable.
However, talking to Chuck, the Linux client uses much smaller
values: always 1024.
Dominique, how did you choose these sizes? Testing?
Currently, the NFS/RDMA protocol doesn't negotiate the values.
Someday in the future, Chuck wants to add negotiation.
But until then, shouldn't we use the smallest legal size?
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