On Tue, Oct 11, 2011 at 08:10:01PM -0700, Josh Triplett wrote: > I tested the new Atom flight computer (the PCM-3363N) with BITS > (http://biosbits.org/) to check for x86 System Management Interrupts > (SMIs) which could break our latency and jitter budgets. I found that > the board has an SMI about 4 times per second, which takes anywhere from > 500us to 1500us. I submitted a support request to the manufacturer > trying to find out how we can disable this, or failing that asking for a > fix. Meanwhile, I'll try adjusting various BIOS settings to see if I > can make it go away.
I just confirmed that the SMIs do not go away if I boot from CF and avoid USB keyboards and USB boot disks (which normally cause SMIs when accessed via BIOS services). - Josh Triplett _______________________________________________ psas-avionics mailing list psas-avionics@lists.psas.pdx.edu http://lists.psas.pdx.edu/mailman/listinfo/psas-avionics
