This is a second version of my patches to improve writeback over NFS. This was prompted by a customer report of very slow throughput to a server running Ganesha NFS server which was taking about 200ms to handle COMMIT requests. While slow COMMIT requests do exacerbate the problem, there are still problems when COMMIT is comparatively fast. Latest test results from customer are that these changes provide substantial improvements. Changes over first version include improvements to the explanation in the commit message, and preservation of "NFS Unstable" counts in various statistics files, despite that fact that the internal accounting is completely gone (merged with writeback accounting). Thanks, NeilBrown
Attachment:
signature.asc
Description: PGP signature
