Question

Difference between throughput and performance

Answer 1

Storage performance defined:Thereare two basic metrics of performance in the world of storage. They are I/O performance and throughput. In general, read performance is more valuedthan write performance because storage devices spendthe majority oftheir time reading data.I/O (Input/Output) performance is the measureof how many small random read/write requests can be processed in a single secondand it is very important in the server world, especially database type applications.IOPS (I/O per second) is the common unit of measurement for I/O performance.Throughput is the measurement of how much data can be read or writtenin a single secondand it is important incertain server applications and very desirable for home use.Throughput is typically measured in MB/sec (megabytes transferred per second)though mbps (megabits per second) is sometimes also used to describe storage communication speeds. There is sometimes confusion between megabits versus megabytes since they sound alike. For example, 100 megabit FastEthernet might sound faster than a typical hard drive that gets70 MB/sec butthis would be like thinking that 100 ounces weighs more than 70 pounds. In reality, the hard drive is much faster because 70 MB/sec is equivalent to 560 mbps.