Based off https://github.com/PaulStoffregen/CoreMark and https://www.eembc.org/coremark/view.php?benchmark_seq=1368,1343,1342,1289 (One of those STM32F4xx have to be close to the performance of the STM32F405 I think.) It might be possible.
On Sat, Feb 8, 2020 at 1:13 AM glen english <[email protected]> wrote: > Hi Dana > > sorry, I mean (non sensible) array access of codec2 causing cache > thrashing... > > it has been a while since I was across the codec2 code. > > One thing for sure, do not step backward through an array with the M7, > bad for cache misses... > > g > > On 8/02/2020 2:29 pm, Dana Myers wrote: > > On 2/7/2020 6:56 PM, glen english wrote: > >> what's the array access like, sensible ? is the cache thrashing ? > >> > > > > No thrashing that I can tell with the ESP-DSP library. I mean, it's > > performant. > > > > 73, > > Dana K6JQ > > > >> > >> On 6/02/2020 5:43 pm, DANA MYERS wrote: > >>> > >>>> On February 5, 2020 at 9:25 PM Bruce Perens via Freetel-codec2 > >>>> <[email protected]> wrote: > >>>> > >>>> Dana, the only thing you didn't make clear is whether your code is > >>>> using the fixed or floating data type. If it's using the floating > >>>> one, it would be interesting to isolate why performance is so poor > >>>> when more conventional code is generated by the compiler. I can > >>>> understand float code being slightly slower than double, if the > >> > >> > >> _______________________________________________ > >> Freetel-codec2 mailing list > >> [email protected] > >> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > > > > > > > _______________________________________________ > > Freetel-codec2 mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > -- > Glen English > RF Communications and Electronics Engineer > > CORTEX RF > & > Pacific Media Technologies Pty Ltd > > ABN 40 075 532 008 > > PO Box 5231 Lyneham ACT 2602, Australia. > au mobile : +61 (0)418 975077 > > > > > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >
_______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
