Evgeny_CD, Архитектор (03.08.2016 00:52 - 06.06.2018 23:56, просмотров: 1096)[Теоретическая тактовая производительность на плавучке для Cortex-A7, Cortex-A9 и Cortex-A15] Подборка ссылок. Upd - добавил ссылку. http://caxapa.ru/690322.html
http://hardwarebug …ruction-cycle-timings/ http://stackoverfl …-cycle-arm-cortex-cpus https://stackoverf …vx2/15657772#15657772. http://stackoverfl …n-raspberry-pi-1-and-2 http://qaoverflow. …-raspberry-pi-1-and-2/ https://stackoverf …-cycle-arm-cortex-cpus Итог выглядит так: Cortex-A7: 0.5 DP FLOPs/cycle: scalar VMLA.F64 every four cycles. 1.0 DP FLOPs/cycle: scalar VADD.F64 every cycle. 2.0 SP FLOPs/cycle: scalar VMLA.F32 every cycle. 2.0 SP FLOPs/cycle: 2-wide VMLA.F32 every other cycle. Cortex-A9: 1.5 DP FLOPs/cycle: scalar VMLA.F64 + scalar VADD.F64 every other cycle. 4.0 SP FLOPs/cycle: 2-wide VMLA.F32 every cycle. Cortex-A15: 2.0 DP FLOPs/cycle: scalar VMLA.F64 (or VFMA.F64) every cycle. 8.0 SP FLOPs/cycle: 4-wide VMLA.F32 (or VFMA.F32) every cycle. VMLA http://www.keil.co …m_dom1361289959291.htm Так что TI со своим 66AK2G02 молодцы! ->
http://hardwarebug …ruction-cycle-timings/ http://stackoverfl …-cycle-arm-cortex-cpus https://stackoverf …vx2/15657772#15657772. http://stackoverfl …n-raspberry-pi-1-and-2 http://qaoverflow. …-raspberry-pi-1-and-2/ https://stackoverf …-cycle-arm-cortex-cpus Итог выглядит так: Cortex-A7: 0.5 DP FLOPs/cycle: scalar VMLA.F64 every four cycles. 1.0 DP FLOPs/cycle: scalar VADD.F64 every cycle. 2.0 SP FLOPs/cycle: scalar VMLA.F32 every cycle. 2.0 SP FLOPs/cycle: 2-wide VMLA.F32 every other cycle. Cortex-A9: 1.5 DP FLOPs/cycle: scalar VMLA.F64 + scalar VADD.F64 every other cycle. 4.0 SP FLOPs/cycle: 2-wide VMLA.F32 every cycle. Cortex-A15: 2.0 DP FLOPs/cycle: scalar VMLA.F64 (or VFMA.F64) every cycle. 8.0 SP FLOPs/cycle: 4-wide VMLA.F32 (or VFMA.F32) every cycle. VMLA http://www.keil.co …m_dom1361289959291.htm Так что TI со своим 66AK2G02 молодцы! ->