From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shaohua Li Subject: Re: [PATCH v2 0/6] Add AVX512 optimized gen_syndrome, xor_syndrome and recovery functions Date: Mon, 22 Aug 2016 09:38:30 -0700 Message-ID: <20160822163830.GA105156@kernel.org> References: <1471050204-26361-1-git-send-email-gayatri.kammela@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1471050204-26361-1-git-send-email-gayatri.kammela@intel.com> Sender: linux-kernel-owner@vger.kernel.org To: Gayatri Kammela Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, ravi.v.shankar@intel.com List-Id: linux-raid.ids On Fri, Aug 12, 2016 at 06:03:18PM -0700, Gayatri Kammela wrote: > This is the version 2 patch series for adding AVX512 optimized gen_syndrome, > xor_syndrome and recovery functions. > > Optimization of RAID6 using AVX512 instructions should improve the > RAID6 performance.These patches are tested and observed the improvement > in performance. > > Changes since v1: > 1) Added xor_syndrome functions to avx512 optimized raid6. > > Gayatri Kammela (6): > lib/raid6: Add AVX512 optimized gen_syndrome functions > lib/raid6: Add AVX512 optimized recovery functions > lib/raid6/test/Makefile: Add avx512 gen_syndrome and recovery > functions > lib/raid6: Add AVX512 optimized xor_syndrome functions > (DO NOT APPLY) lib/raid6: Add unroll by 8 to AVX512 optimized > gen_syndrome functions > (DO NOT APPLY) lib/raid6: Add unroll by 8 to AVX512 optimized > xor_syndrome functions. > > arch/x86/Makefile | 5 +- > include/linux/raid/pq.h | 5 + > lib/raid6/Makefile | 2 +- > lib/raid6/algos.c | 13 + > lib/raid6/avx512.c | 972 +++++++++++++++++++++++++++++++++++++++++++++++ > lib/raid6/recov_avx512.c | 388 +++++++++++++++++++ > lib/raid6/test/Makefile | 5 +- > lib/raid6/x86.h | 10 + > 8 files changed, 1396 insertions(+), 4 deletions(-) > create mode 100644 lib/raid6/avx512.c > create mode 100644 lib/raid6/recov_avx512.c Hi, I applied the first 4 patches, but I'm not familiar with the new instructions and nor have the hardware to test them, so only have limited check. Thanks, Shaohua