Hi all,
I have bulk writing and reading working on RPCMX, sort of.
Reading seems to work fine. Writing seems to work fine if
RPCMX_MAX_DATA_SEGS is set to <=32 (versus the default of 8 in
RPCRDMA). Above that value, I get an oops on the server.
Reading seems to work fine with values up to 128. I have not tried
256, because the code then adds 2 to create RPCMX_MAX_SEGS and MX is
limited to 256 total segments. I tried 254, but the client seems to
prefer power of 2 values, so it uses 128 pages (512 KB).
As best I can tell when reading a 1 MB file, the first transfer is 32
pages, the second transfer is 128 pages, and the final transfer is the
remaining 96 pages.
When writing, the client tries to send 128 pages twice. The SVC MX
layer receives them correctly (it parses the request correctly and
posts 128 pages), but I get an oops in svc_process().
Is this related to the congestion window or something else? It doesn't
come up in RPCRDMA since it is limited to 8 pages.
Any advice would be great.
Thanks,
Scott
--
Scott Atchley
Myricom Inc.
http://www.myri.com
--
To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
