[dpdk-dev] [PATCH v4 0/4] fix performance/cache resource issues with 128-byte cache line targets
Jerin Jacob
jerin.jacob at caviumnetworks.com
Mon Feb 8 10:31:58 CET 2016
On Fri, Jan 29, 2016 at 01:15:51PM +0530, Jerin Jacob wrote:
> 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
>
ping for review/merge
> 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
>
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