Hello there! I'm running benchmarks and it looks like that md device is only utilizing single core which it limiting it's performance on concurrent (4+ threads) writes with 8 SSD drives in software RAID10 Kernel: Linux host 4.10.12-1.el7.elrepo.x86_64 #1 SMP Fri Apr 21 09:58:15 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux Exact numbers are here: http://astellar.com/images/sysbench_rnd_writes.png Could you please let me know if there is multi-threaded support on MD devices in 4.x kernels and point me to the documentation (preferred) or source code which describes tunable parts of /dev/mdXX devices. Much appreciated! Thank you! --- Vlad -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
