Efficient support for larger I/O sizes

linux-nfs / nfsd

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Efficient support for larger I/O sizes #29

Open chucklever opened 7 months ago

chucklever commented 7 months ago

This was bugzilla.linux-nfs.org 377

[Chuck Lever 2022-01-21 19:31:33 UTC] Read and write sizes of up to 8MB could be beneficial for NFS/RDMA. The issue is the size of the rq_pages array. As folios are integrated into the kernel, it might be time to consider replacing that array so that we can easily expand the maximum I/O size supported by NFSD.

chucklever commented 6 months ago

The most frequently-requested maximum size is 8MB for Read and Write. This would also impact the values returned for maximum request and response sizes when creating an NFSv4.1 session.