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DSPF_sp_vecsum_sq 在release模式下耗时很长的问题

Other Parts Discussed in Thread: FFTLIB

我用C6678的芯片调用DPSLIB库中的DSPF_sp_fftSPxSP函数做FFT计算,用DSPF_sp_vecsum_sq对FFT后的复数求模,结果发现同样的长度的数据,release模式下调用DSPF_sp_vecsum_sq的耗时比debug多了几个数量级(debug 32K float 好像是7ms  release 下竟然达到秒级)  求大神,谢谢!

BTW,如果我换成FFTLIB我该怎么用,调用那个函数,谢谢?