[ Thanks to Amy Newman> for this link. ]
We’re discovering that the performance of a much larger
number of applications than previously thought are dominated by
IOPS (I/O operations per second) performance. In my particular
field, high performance computing (HPC), the examination of I/O
patterns in applications is showing that small read and write
function calls are much more common than previously thought.“It’s becoming fairly routine to see applications that write
Gigabytes or even Terabytes of data to have a large number of 1K
and 4K write and read function calls. Consequently, these workloads
look increasingly like IOPS-dominated I/O patterns to the OS and
the file system.”