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T1042/e5500 performance in hybrid 32-bit mode?

Question asked by Skye Otten on Aug 27, 2017

Hello, is there an expected performance hit when running the core(s) in hybrid 32-bit mode and compiling with gcc -m32 -CPU=e500mc versus running the core(s) in 64-bit mode? Is DMIPs rating the same? Are there benchmarks available comparing the two modes? VxWorks 6.9 is the operating system.