[dpdk-dev] [PATCH 4/4] app/test: Adjust alignment unit for memcpy perf test

Zhihong Wang zhihong.wang at intel.com
Thu Jan 14 07:13:22 CET 2016


Decide alignment unit for memcpy perf test based on predefined macros.

Signed-off-by: Zhihong Wang <zhihong.wang at intel.com>
---
 app/test/test_memcpy_perf.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/app/test/test_memcpy_perf.c b/app/test/test_memcpy_perf.c
index 754828e..73babec 100644
--- a/app/test/test_memcpy_perf.c
+++ b/app/test/test_memcpy_perf.c
@@ -79,7 +79,13 @@ static size_t buf_sizes[TEST_VALUE_RANGE];
 #define TEST_BATCH_SIZE         100
 
 /* Data is aligned on this many bytes (power of 2) */
+#ifdef RTE_MACHINE_CPUFLAG_AVX512F
+#define ALIGNMENT_UNIT          64
+#elif RTE_MACHINE_CPUFLAG_AVX2
 #define ALIGNMENT_UNIT          32
+#else /* RTE_MACHINE_CPUFLAG */
+#define ALIGNMENT_UNIT          16
+#endif /* RTE_MACHINE_CPUFLAG */
 
 /*
  * Pointers used in performance tests. The two large buffers are for uncached
-- 
2.5.0



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