[CURRENT]: weird memory/linker problem?

Ian Lepore ian at FreeBSD.org
Mon Jun 23 15:49:43 UTC 2014


On Mon, 2014-06-23 at 16:31 +0200, O. Hartmann wrote:
> 
> I'm out of ideas. Is there a way to stress test the CPU and memory
> system to check
> whether RAM, the CPU itself and, as an additional possibility, the
> disk i/o controller
> (Intel ICH10)?
> 
> Thanks for your patience,

A really good tool for stress-testing a system is ports/math/mprime.  It
will find memory and cpu errors that memtest86 and other tools
completely overlook.  Run one copy per cpu, something like this:

for i in $(jot $(sysctl -n hw.ncpu) 0) ; do
    sleep $((i * 2)) && mprime -t -a$i >/tmp/mprime$i.log &
done

Many overclockers use this to ensure the system is stable with the OC
settings.  If your system can run a copy of mprime per cpu continuously
for 24 hours the hardware is fine.

-- Ian




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