Enable benchmarking of streaming DMA mapping
modulename: map_benchmark.ko
configname: CONFIG_DMA_MAP_BENCHMARK
Linux Kernel Configuration
└─>Library routines
└─>Enable benchmarking of streaming DMA mapping
In linux kernel since version 5.2 (release Date: 2019-07-07)
Provides /sys/kernel/debug/dma_map_benchmark that helps with testing
performance of dma_(un)map_page.
See tools/testing/selftests/dma/dma_map_benchmark.c
performance of dma_(un)map_page.
See tools/testing/selftests/dma/dma_map_benchmark.c