Re: [Iometer-user] iometer result and iostat result doesn't match

[qingwei w. <tch...@gm...>]

Hi Carl,

I presume iostat result should be more accurate than IOmeter?

Probably have to try fio for Linux machine.

cw


On Thu, Nov 7, 2013 at 12:09 AM, Carl Zwanzig <cp...@co...> wrote:

> (Sorry for the top post, OWA doesn't give a choice)
>
> Yes, I've seen this and similar problems with reported speeds.There were
> also problems with dynamo crashing. In the end, I gave up looking for the
> root cause and dropped iometer/linux from our test scheme.
>
> z!
> ________________________________________
> From: qingwei wei [tch...@gm...]
> Sent: Wednesday, November 06, 2013 12:00 AM
> To: iom...@li...
> Subject: [Iometer-user] iometer result and iostat result doesn't match
>
> Hi,
>
> I am currently running IOmeter (2006.07.27) on Linux machine (with SAN
> Storage). When running IOmeter, i also run iostat to capture the disk
> output every 60 seconds. What i found interesting is when i checked the
> throughput (MBps), IOMeter is reporting a throughput of ~265MBps while
> iostat result report around 500MBps.
>
> For IOmeter (1.1.0), the GUI result is around 250MBps and iostats result
> report 128MBps.
>
> Anyone encounter such issue when they run IOmeter on Linux machine?
>
> cw
>