[dpdk-dev] [PATCH 0/4] hash: separate lf and rw lock lookup code paths

[Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>]

The lock-free algorithm has caused significant lookup
performance regression for certain use cases. The
regression is attributed to the use of non-relaxed
memory orderings.

To address the issue, 2 versions of the lookup functions
are created. One that uses the RW lock and the one that
is lock-free. This restores the performance regression
caused for use cases that used RW lock version of the
lookup function.

This series has been split into 4 commits to make the review
process easier. All of these should be squashed into a single
commit after the review process is over.

Honnappa Nagarahalli (4):
  hash: prepare for lock-free and rw-lock separation
  hash: remove rw-lock calls from lock-free functions
  hash: remove memory orderings from rw-lock lookup fns
  hash: separate lf and rw lock lookup code paths

 lib/librte_hash/rte_cuckoo_hash.c | 303 ++++++++++++++++++++++++++++--
 1 file changed, 289 insertions(+), 14 deletions(-)

-- 
2.17.1