[dpdk-dev] [PATCH v4 0/2] mempool: add stack mempool handler

[David Hunt <david.hunt@intel.com>]

This patch set adds a lifo stack handler to the external mempool
manager.

This patch utilises the mempool handler feature which allows the addition
of new mempool handlers to DPDK.

Performance Notes:
For the mempool_perf_autotest, there's ain average of 30% increase in
performance for the local cache use-case for 1 - 36 cores (results vary
within those tests between 10-45% gain, but with an average of 30% gain
over all the tests.).

However, for the tests with no local cache configured, throughput of the
enqueue/dequeue drops by about 30%, with the 36 core yelding the largest
drop of 40%. So this handler would not be recommended in no-cache
applications.

v4 changes:
  * Update the test to replace the custom handler test with the
    stack handler test rather than just adding a stack handler test.
    The custom handler code is very similar to the stack handler, so
    there's no need to have both.

v3 changes:
  * Updated based on the latest version (v15) of the Mempool Handler feature

v2 changes:
  * updated based on mailing list feedback (Thanks Stephen)
  * checkpatch fixes.

David Hunt (2)
  mempool: add stack (lifo) mempool handler
  test: migrate custom handler test to stack handler