topic Performance tool in HPE EVA Storage

Performance tool

andy steven — Mon, 21 Feb 2005 08:22:52 GMT

hi i want a performance tool that just does reads and writes to disk, this is so i can see whether performance degrades over time.

anyone know of a good free tool

Re: Performance tool

B. Hulst — Mon, 21 Feb 2005 10:37:55 GMT

Hi,

You can use dd.

and monitor it with sar (or glance).

Or use

times dd if=/tmp/1gb.data of=/var/tmp/test.dat

Regards,
Bob

Re: Performance tool

Andrei Lica_1 — Tue, 22 Feb 2005 03:54:35 GMT

see http://www.textuality.com/bonnie/
It's widely used for I/O speed benchmarks in both unix and linux. It has linear or random reads/writes, buffered and unbuffered, seek tests.
Sometimes dd ( depending on unix flavour or fielsystem type/block size ) is not performing very well.

Re: Performance tool

Leif Halvarsson_2 — Tue, 22 Feb 2005 04:38:08 GMT

Hi,
Another usefull benchmark tool is PostMark from NetApp.
http://www.netapp.com/tech_library/3022.html

Re: Performance tool

MAUCCI_2 — Tue, 22 Feb 2005 16:32:26 GMT

You want to give a try to iozone (http://www.iozone.org/) too