Hi, while testing I noticed that sometimes thousands of items are
inserted into file_hashtbl, but it's a small fixed-size hash. That
makes the buckets in file_hashtbl larger than two or three items.
The comparison function (fh_match) used while walking through the
buckets is expensive and cache-unfriendly.
The following patches seem to help alleviate that overhead.
---
Chuck Lever (2):
NFSD: Use const pointers as parameters to fh_ helpers.
NFSD: Use rhashtable for managing nfs4_file objects
fs/nfsd/nfs4state.c | 227 ++++++++++++++++++++++++++++++--------------
fs/nfsd/nfsfh.h | 10 +-
fs/nfsd/state.h | 5 +-
3 files changed, 162 insertions(+), 80 deletions(-)
--
Chuck Lever
