[dpdk-dev] [PATCH v2 0/4] fixes for rte_hash with TSX

Bruce Richardson bruce.richardson at intel.com
Mon Nov 12 11:47:15 CET 2018


When testing with rte_hash library and TSX, a higher level of transaction
aborts was observed in some cases, especially with newer compilers.  These
patches reduce aborts by ensuring that the compiler does not accidentally
insert instructions that cause aborts, and by adding in delays on retry to
avoid repeated collisions.

Bruce Richardson (2):
  eal/x86: reduce contention when retrying TSX
  test/test: improve output for hash read-write test

Yipeng Wang (2):
  hash: fix TSX aborts with newer gcc
  hash: add local cache for TSX region

 .../common/include/arch/x86/rte_spinlock.h          | 21 +++++++++++++++++----
 lib/librte_eal/linuxapp/eal/eal_alarm.c             |  2 ++
 lib/librte_hash/rte_cmp_x86.h                       |  2 ++
 lib/librte_hash/rte_cuckoo_hash.c                   |  7 ++++---
 test/test/test_hash_readwrite.c                     | 20 +++++++++++---------
 5 files changed, 36 insertions(+), 16 deletions(-)

-- 
1.8.5.6



More information about the dev mailing list