单选题In order to determine how efficiently an application is reading and writing data， which of the following utilities will report read and write sizes on disk I/O requests？（）AtprofBiostatCsvmonDfilemon
题目
单选题
In order to determine how efficiently an application is reading and writing data， which of the following utilities will report read and write sizes on disk I/O requests？（）
A
tprof
B
iostat
C
svmon
D
filemon