*mensure: measure!! Sorry about it and other typo. 2012/12/8 Gustavo da Silva <[email protected]>
> Hello Kernel Brothers!! How are you??? > > So, I would like test the performance of my notebook, developing one or > two utilities, and have a better > mensurement about the speed. > > But it can help all of us. > > 1st: I would like mensure the speed making a counter (exacly bogomips? may > be). Loop+counter during 1 tickrate. > 2nd: The most interesting: How many memory cells in ram can we > access during 1tickrate? How could we develop this?! > > Both utils may run in long mode (64bits). Well, in real mode too; so, we > can compare the speed in the two modes! > > Some one knows how to develop a very small program/routine about that?! > > For the 2nd situation, a simple idea wrote in codesnipet form (consider > the intention, not the sintax! there are bugs! I know. Intel syntax.) > > dw the_counter_cell 0 > lea bx, the_counter_cell > xor bx,bx > label: > inc [bx] # Could not be so simple like this, because the address can > be cached. Right? > loop label # breaked by an interruption. Just to express the intention. > > How could we create a small code for the 2nd situation, tring to force the > processor to not use the cache? > > Regards. > Peace out. > > -- > Atenciosamente, > > Gustavo da Silva > [email protected] > -- Atenciosamente, Gustavo da Silva [email protected]
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