Ingo Molnar <mi...@elte.hu> writes: > [...] So, to sum it up: utrace XOL, which is rather complex already, > needs even more complexity (which is not yet implemented) than the > much simpler common-case emulator approach i outlined, just to break > even with the performance of the much simpler approach. [...]
Is it an uncontroversial claim that emulation of CISC instructions should perform better than their native execution, followed by an int3 (as in the simplest working scheme) or boosting (as done by kprobes)? >From my experience with simulators, "simple" software emulation of cpus can be hundreds of times slower or worse than native execution. - FChE
