Messages in this thread | | | From | Neil Brown <> | Date | Mon, 3 Apr 2006 11:17:17 +1000 | Subject | Re: [NFS] [PATCH] knfsd: Correct reserved reply space for read requests. |
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On Thursday March 30, eshel@almaden.ibm.com wrote: > Hi Neil > Can we use this opportunity to change NFSSVC_MAXBLKSIZE from 32K to 64K to > match RPCSVC_MAXPAYLOAD. It makes real difference in I/O performance (we > will still be saving half the space we used to allocate :). > Thanks, Marc.
Maybe... but why not 128K ??
There is certainly room to increase NFSSVC_MAXBLKSIZE, but I feel that it needs to be done together with a more detailed look at consequences in the network layer, particularly TCP window sizes. I wouldn't mind making a CONFIG_ tunable without that detailed look, but making it a fixed change I feel less comfortable about.
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