Hello All,
With multithread raid5 enabled (echo 48 > /sys/block/md51/md/group_thread_cnt) what I understand is that all the cpu cores will be able to submit async_xor instructions in parallel for a single md raid5 device.
Question: About polling for completion, is that also multi-threaded ? - Does the same number of worker threads (48 in my test) will continue poll for XOR completion as well ?
My multi-core SoC has XOR/GF offload channel, and I am trying to see how to get the best throughput for raid5 rebuild using multithread functionality.
Regards
Vikas Aggarwal