Am 12.02.2013 01:17, schrieb Robert Moskowitz: > > On 02/11/2013 06:07 PM, Reindl Harald wrote: >> >> Am 11.02.2013 23:43, schrieb Robert Moskowitz: >>> Do I have this right? >>> >>> since on a duo core system, /proc/cpuinfo reports both cores and a bogomips number for each, that number is the >>> value for a core. Thus 'in theory' the bogomips for the unit is the sum of the two values (the same in every duo >>> core I have seen) >> practically i would say this value is hmm useless >> >> is it hardcoded in the CPU? >> is it measured? >> >> if it is measured at which moment of time >> which stepping had the CPU at the moment :-) > > I realize it is rather relative, but it helps me keep my various systems classified, like system 1 is probably > twice the speed of system 2 (given same # of cores and memory) not really :-) home machine (16 GB) model name: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz bogomips: 6784.31 production VMware guest (10 GB) model name : Intel(R) Xeon(R) CPU E5-2640 0 @ 2.50GHz bogomips : 4987.50 under real load the XEON is so much faster even with the virualization overhead which is small these days but still exists i have seen the XEON machine with a Load of 140 while a massive DDOS was running with ten thousands of connections and 100Mbit incoming traffic from always the same request on a mysql-driven website and ssh/lsof/ps aux was as fast as it would be idle, on the home-machine with a load over 40 you are done
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