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DSPF_sp_vecmul函数执行效率



调用displib中的DSPF_sp_vecmul函数执行float型向量相乘,但是执行效率与datasheet中提供的差距很大。这点如何解释?测试情况是:两个长度为8192的向量相乘耗时为24589cycles;长度为200的向量相乘耗时为178cycles。datasheet中描述是这样的