Messages in this thread | | | Date | Mon, 3 Mar 2014 12:31:06 +0000 | From | One Thousand Gnomes <> | Subject | Re: [PATCH] x86: set Pentium M as PAE capable |
| |
> We routinely expect 2 to 3 u-s jitters on an Atom board running a 32 bit, > RTAI enhanced build of what is by now a 5 year old kernel. This is > extremely board sensitive, and that same kernel running on this 4 core > phenom, cannot stay inside of 40 u-s. A case of more horsepower not being > a good deal at all.
Can't speak for AMD devices but I would be curious to know more on the Intel side about this and how you measured and analysed it.
Are you running with any hyperthreading disabled, a firmware which is not using SMM, and with any critical code pinned in cache ? How do you have power management set up ?
(probably best taken off list)
Alan
| |