Add a performance metric "ioSize" of filesystem.#834

wisererik merged 1 commit intosodafoundation:mastersodafoundation/delfin:masterfrom

JiuyunZhao:jiuyunzhao_add_iosize_20220415JiuyunZhao/delfin:jiuyunzhao_add_iosize_20220415Copy head branch name to clipboard