Hello everybody !
I have a bunch of matrices that I copy to my GTX 1050 Ti for some processing.
Each transfer is about 200Mbyte of pageable memory.
I’m seeing significant differences in the transfer rate.
Some transfer up to 2Gbyte/s (the first ones) and some all the way to < 100Mbyte/s (the last ones), for which the performance hit becomes non-negligible. There are 12 matrices.
For pinned memory, the transfer rate is pretty much fixed at 12GByte/second for all matrices.
Could this be that when those large differences are due to the CPU struggling to find contiguous memory space when the RAM gets around 80% full ?
Thanks and have a nice day !