This patchset fixes performance/cache resource issues with 128-byte cache line
targets
found in mbuf and bitmap DPDK libraries
Currently, we have two DPDK targets(ThunderX and ppc_64) which are based on
128-bytes cache line size target.
This patchset doesn't introduce any performance degradation
for 64-bytes cache line size targets.
v1..v2
- Introduced new cache macro definitions as Suggested by Konstantin
- Reduced the cache alignment requirement for 128-byte cache targets in
slow-path data structures to save the memory
- Verified x86(a 64byte cacheline target) does not have any impact on these
changes by
verifying the md5sum of app/test,app/testpmd, app/testacl binaries with
or without this patch set
v2..v3
revert the cache alignment of rte_ring_debug_stats,
rte_mempool_debug_stats structures
v3..v4
replaced RTE_CACHE_MIN_LINE_SIZE with RTE_CACHE_LINE_MIN_SIZE as suggested by
olivier.matz at 6wind.com
For clean git am, "config: cleanup existing RTE_CACHE_LINE_SIZE selection
scheme"
patch needs to apply first
Jerin Jacob (4):
eal: Introduce new cache line macro definitions
mbuf: fix performance/cache resource issue with 128-byte cache line
targets
bitmap: optimize for 128-bytes cache line targets
cache/slow-path: reduce cache align requirement for 128-byte cache
targets
app/test/test_mbuf.c | 2 +-
lib/librte_eal/common/include/rte_memory.h | 16 ++++++++++++++++
.../linuxapp/eal/include/exec-env/rte_kni_common.h | 4 +++-
lib/librte_ether/rte_ethdev.h | 4 ++--
lib/librte_mbuf/rte_mbuf.h | 2 +-
lib/librte_sched/rte_bitmap.h | 10 +++++-----
6 files changed, 28 insertions(+), 10 deletions(-)
--
2.1.0
