memory test in linux servers

asteroid4u · 07-06-2017, 08:41 AM

Hi,

How do perform memort test in linux server?

Requirement is i want to make memory 100% usage for 20 mins. we have 8TB memory size server. Please suggest some tools

szboardstretcher · 07-06-2017, 08:52 AM

stress or stress-ng

https://www.cyberciti.biz/faq/stress...ith-stress-ng/

asteroid4u · 07-06-2017, 09:01 AM

I have used the tool for cPU stress testing it will support memory test too?

mralk3 · 07-06-2017, 12:36 PM

https://github.com/axboe/fio

I suggest you look for it in your distributions software repositories.

Habitual · 07-06-2017, 01:09 PM

Quote:

Originally Posted by asteroid4u

8TB memory size server.

Virtual host?
if not, reboot it and with a recent LiveCD, run memory check

asteroid4u · 07-06-2017, 09:10 PM

Hi All,

we cannot perform with Live CD. I need to test it for applications how it behaves when memory is 100% usage.

Thanks,

Habitual · 07-07-2017, 09:19 AM

Quote:

Originally Posted by asteroid4u

we cannot perform with Live CD.

So it is a Virtual host?

mralk3 · 07-07-2017, 11:03 AM

Quote:

Originally Posted by Habitual

So it is a Virtual host?

It would also be helpful if you shared what distribution you are running. It makes a difference to know what you have available to install from software repositories.

jefro · 07-07-2017, 09:55 PM

Not sure what you are trying to do exactly. Testdisk and other dedicated memory tests use a number of patterns to force the memory to perform almost every possible example of use.

Using all available memory to 100% really would be difficult to do live. The slightest bit over 100% could crash the system. Getting near it without swap generally means disaster.

If you want to simply consume your ram then a ram drive sort of use would consume whatever.

MrUmunhum · 07-11-2017, 02:52 PM

FYI, I wrote a simple Real Time performance monitor that uses the /proc file system to gather data and Gnuplot to display the data for CPU, Memory and Network usage. It is dated and brute force but still works form me. It is called PFSS ( Prof File Statical Subsystem ) and can be downloaded at: http://mt-umunhum-wireless.net/pfss/.
If mods are needed to support your server, I have the time to help. I use it on my laptop and a Raspberry Pi.