On 01/12/2010 12:10 AM, Ashley M. Kirchner wrote: > So I never paid attention to this since I always assumed the system > will do The Right Thing (TM), however while going through servers today, > I came across this discrepancy and was hoping someone here could help me > figure out what's going on. > > While 'cat'ing /proc/cpuinfo I see this (other information removed): > > vendor_id : GenuineIntel > cpu family : 15 > model : 4 > model name : Intel(R) Pentium(R) 4 CPU 3.40GHz > stepping : 10 > cpu MHz : 2400.000 > cache size : 2048 KB > > Someone please explain to me how the CPU is a 3.4GHz CPU (which I've > verified by reading it right off of the top of the processor) and yet > two lines down it says that it's 2400.000 MHz (or 2.4GHz) What happened > with the missing 1GHz? The second CPU reports the same thing. > > Is this a motherboard issue? Possibly not configured right? If so, > boy do I feel stupid considering this machine has been in production for > a long time and no one's ever noticed. > > Comments? > > A > it is because Intel SpeedStep is enabled in BIOS ... just disable Intel SpeedStep.. and see what happens ( probably you will get the actual rating of the CPU in /proc/cpuinfo. SpeedStap is on-demand frequency scaling ...it allows system to utilise CPU as per the need. for more details please .... visit 1) http://en.wikipedia.org/wiki/SpeedStep 2) http://software.intel.com/en-us/articles/enhanced-intel-speedstepr-technology-and-demand-based-switching-on-linux/ Regards -- °v° /(_)\ ^ ^ Jatin Khatri Registerd Linux user No #501175 www.counter.li.org No M$ -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
