On Thursday 03 January 2008 22:29:06 Paul Brook wrote: > > ... Ok, to cut a long question short: Is there any hardware support im > > qemu for doing monitoring (that goes deeper than using "time") and has > > anyone ever tested something that could work? > > Probably your application wants the performance counters. Qemu doesn't > emulate those. > > Besides which, qemu is not cycle accurate. Any performance measurements > your make are pretty much meaningless, and bear absolutely no relationship > to real hardware.
Thanks for the quick answer Paul! Not really what I wanted to hear, but probably true ;-) Does anyone have an idea on how I can measure performance in qemu to a somewhat accurate level? I have modified qemu (the memory handling) and the linux kernel and want to find out the penalty this introduced... does anyone have any comments / ideas on this? Thanks!
