IOR Tests

From OpenSFS Wiki
Revision as of 07:45, 12 June 2014 by BenEvans (talk | contribs) (Created page with "==== IOR Performance Tests ==== === Streaming === mpirun -np {NP} -wd {Working Dir} -machinefile {Machine File} {IOR Pathname}/IOR -v -a POSIX -i5 -g -e -w -r -b {FileSize}g ...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

IOR Performance Tests

Streaming

mpirun -np {NP} -wd {Working Dir} -machinefile {Machine File} {IOR Pathname}/IOR -v -a POSIX -i5 -g -e -w -r -b {FileSize}g -T 10 -F -C -t 4m

Random I/O

mpirun -np {NP} -wd {Working Dir} -machinefile {Machine File} {IOR Pathname}/IOR -v -a POSIX -i5 -g -e -w -r -b {FileSize}g -T 10 -F -z -t 4k

Where:

 {NP} is Total number of threads in the test
 {Working Dir} is the directory where files get created
 {Machine File} is a list of clients involved in the test, this is either created by hand, or by a scheduler
 {IOR Pathname} The full path to IOR, this must be accessible on all clients
 {FileSize} The size of the file each thread will use.  This should be a multiple of client memory, to prevent cache effects.