[dpdk-dev] [PATCH v4 0/1] New software event timer adapter

Erik Gabriel Carrillo erik.g.carrillo at intel.com
Sat Dec 15 00:15:46 CET 2018


This patch introduces a new version of the event timer adapter software
PMD [1]. In the original design, timer event producer lcores in the primary
and secondary processes enqueued event timers into a ring, and a service
core in the primary process dequeued them and processed them further.  To
improve performance, this version does away with the ring and lets lcores in
both primary and secondary processes insert timers directly into timer
skiplist data structures; the service core directly accesses the lists as
well, when looking for timers that have expired. (This behavior requires
the patch to the timer library that is referenced below.)

Depends on: https://patches.dpdk.org/project/dpdk/list/?series=2767

[1] https://doc.dpdk.org/guides/prog_guide/event_timer_adapter.html

Changes in v4:
 - Addressed the following comments from Mattias Ronnblom:
   - remove unnecessary header include
   - add missing read barrier in timer cancel function

Changes in v3:
 - Addressed comments from Mattias Ronnblom:
   - remove unnecessary header include
   - remove unnecessary cast in mempool_put() call
   - update alignment of elements of array to avoid false sharing issue

Changes in v2:
 - split this change out into its own patch series

Erik Gabriel Carrillo (1):
  eventdev: add new software event timer adapter

 lib/librte_eventdev/rte_event_timer_adapter.c | 689 +++++++++++---------------
 1 file changed, 277 insertions(+), 412 deletions(-)

-- 
2.6.4



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